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Finding the Fourth Proportional to 100,068.04, 138,092.82 and 54,746.92

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Solution

The fourth proportional to 100,068.04, 138,092.82 and 54,746.92 is: 75,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,068.04 : 138,092.82 = 54,746.92 : x
  2. Step 2: Convert to fraction form
    100,068.04/138,092.82 = 54,746.92/x
  3. Step 3: Cross multiply
    100,068.04x = 138,092.82 × 54,746.92
  4. Step 4: Simplify right side
    100,068.04x = 7,560,156,569.11
  5. Step 5: Solve for x
    x = 7,560,156,569.11/100,068.04
  6. Step 6: Final answer
    x = 75,550.16

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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.