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Finding the Fourth Proportional to 72,154.47, 108,233.54 and 34,194.83

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Solution

The fourth proportional to 72,154.47, 108,233.54 and 34,194.83 is: 51,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,154.47 : 108,233.54 = 34,194.83 : x
  2. Step 2: Convert to fraction form
    72,154.47/108,233.54 = 34,194.83/x
  3. Step 3: Cross multiply
    72,154.47x = 108,233.54 × 34,194.83
  4. Step 4: Simplify right side
    72,154.47x = 3,701,026,788.46
  5. Step 5: Solve for x
    x = 3,701,026,788.46/72,154.47
  6. Step 6: Final answer
    x = 51,293.10

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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.