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Finding the Fourth Proportional to 124,744.76, 172,145.76 and 68,154.92

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Solution

The fourth proportional to 124,744.76, 172,145.76 and 68,154.92 is: 94,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,744.76 : 172,145.76 = 68,154.92 : x
  2. Step 2: Convert to fraction form
    124,744.76/172,145.76 = 68,154.92/x
  3. Step 3: Cross multiply
    124,744.76x = 172,145.76 × 68,154.92
  4. Step 4: Simplify right side
    124,744.76x = 11,732,580,501.14
  5. Step 5: Solve for x
    x = 11,732,580,501.14/124,744.76
  6. Step 6: Final answer
    x = 94,052.69

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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.