Home / 119,740.16-165,240.12-66,029.88

Finding the Fourth Proportional to 119,740.16, 165,240.12 and 66,029.88

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Solution

The fourth proportional to 119,740.16, 165,240.12 and 66,029.88 is: 91,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,740.16 : 165,240.12 = 66,029.88 : x
  2. Step 2: Convert to fraction form
    119,740.16/165,240.12 = 66,029.88/x
  3. Step 3: Cross multiply
    119,740.16x = 165,240.12 × 66,029.88
  4. Step 4: Simplify right side
    119,740.16x = 10,910,785,294.79
  5. Step 5: Solve for x
    x = 10,910,785,294.79/119,740.16
  6. Step 6: Final answer
    x = 91,120.52

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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.