Home / 118,111.77-162,988.07-67,117.68

Finding the Fourth Proportional to 118,111.77, 162,988.07 and 67,117.68

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Solution

The fourth proportional to 118,111.77, 162,988.07 and 67,117.68 is: 92,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,111.77 : 162,988.07 = 67,117.68 : x
  2. Step 2: Convert to fraction form
    118,111.77/162,988.07 = 67,117.68/x
  3. Step 3: Cross multiply
    118,111.77x = 162,988.07 × 67,117.68
  4. Step 4: Simplify right side
    118,111.77x = 10,939,380,790.49
  5. Step 5: Solve for x
    x = 10,939,380,790.49/118,111.77
  6. Step 6: Final answer
    x = 92,618.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.