Home / 112,338,698.80-168,508,048.20-91,931,364.40

Finding the Fourth Proportional to 112,338,698.80, 168,508,048.20 and 91,931,364.40

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Solution

The fourth proportional to 112,338,698.80, 168,508,048.20 and 91,931,364.40 is: 137,897,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,338,698.80 : 168,508,048.20 = 91,931,364.40 : x
  2. Step 2: Convert to fraction form
    112,338,698.80/168,508,048.20 = 91,931,364.40/x
  3. Step 3: Cross multiply
    112,338,698.80x = 168,508,048.20 × 91,931,364.40
  4. Step 4: Simplify right side
    112,338,698.80x = 15,491,174,783,406,964
  5. Step 5: Solve for x
    x = 15,491,174,783,406,964/112,338,698.80
  6. Step 6: Final answer
    x = 137,897,046.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.