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Finding the Fourth Proportional to 121,337.40, 182,006.10 and 68,849.40

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Solution

The fourth proportional to 121,337.40, 182,006.10 and 68,849.40 is: 103,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,337.40 : 182,006.10 = 68,849.40 : x
  2. Step 2: Convert to fraction form
    121,337.40/182,006.10 = 68,849.40/x
  3. Step 3: Cross multiply
    121,337.40x = 182,006.10 × 68,849.40
  4. Step 4: Simplify right side
    121,337.40x = 12,531,010,781.34
  5. Step 5: Solve for x
    x = 12,531,010,781.34/121,337.40
  6. Step 6: Final answer
    x = 103,274.10

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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.