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Finding the Fourth Proportional to 122,937.84, 169,666.92 and 75,222.90

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Solution

The fourth proportional to 122,937.84, 169,666.92 and 75,222.90 is: 103,815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,937.84 : 169,666.92 = 75,222.90 : x
  2. Step 2: Convert to fraction form
    122,937.84/169,666.92 = 75,222.90/x
  3. Step 3: Cross multiply
    122,937.84x = 169,666.92 × 75,222.90
  4. Step 4: Simplify right side
    122,937.84x = 12,762,837,756.47
  5. Step 5: Solve for x
    x = 12,762,837,756.47/122,937.84
  6. Step 6: Final answer
    x = 103,815.37

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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.