Home / 104,743.18-144,691.38-100,854.59

Finding the Fourth Proportional to 104,743.18, 144,691.38 and 100,854.59

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Solution

The fourth proportional to 104,743.18, 144,691.38 and 100,854.59 is: 139,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,743.18 : 144,691.38 = 100,854.59 : x
  2. Step 2: Convert to fraction form
    104,743.18/144,691.38 = 100,854.59/x
  3. Step 3: Cross multiply
    104,743.18x = 144,691.38 × 100,854.59
  4. Step 4: Simplify right side
    104,743.18x = 14,592,788,578.70
  5. Step 5: Solve for x
    x = 14,592,788,578.70/104,743.18
  6. Step 6: Final answer
    x = 139,319.70

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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.