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Finding the Fourth Proportional to 123,088.60, 169,862.23 and 66,499.98

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Solution

The fourth proportional to 123,088.60, 169,862.23 and 66,499.98 is: 91,769.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,088.60 : 169,862.23 = 66,499.98 : x
  2. Step 2: Convert to fraction form
    123,088.60/169,862.23 = 66,499.98/x
  3. Step 3: Cross multiply
    123,088.60x = 169,862.23 × 66,499.98
  4. Step 4: Simplify right side
    123,088.60x = 11,295,834,897.76
  5. Step 5: Solve for x
    x = 11,295,834,897.76/123,088.60
  6. Step 6: Final answer
    x = 91,769.95

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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.