Home / 112,400.20-168,665.10-42,329.80

Finding the Fourth Proportional to 112,400.20, 168,665.10 and 42,329.80

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Solution

The fourth proportional to 112,400.20, 168,665.10 and 42,329.80 is: 63,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,400.20 : 168,665.10 = 42,329.80 : x
  2. Step 2: Convert to fraction form
    112,400.20/168,665.10 = 42,329.80/x
  3. Step 3: Cross multiply
    112,400.20x = 168,665.10 × 42,329.80
  4. Step 4: Simplify right side
    112,400.20x = 7,139,559,949.98
  5. Step 5: Solve for x
    x = 7,139,559,949.98/112,400.20
  6. Step 6: Final answer
    x = 63,519.10

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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.