Home / 123,110.84-169,864.02-74,711.67

Finding the Fourth Proportional to 123,110.84, 169,864.02 and 74,711.67

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Solution

The fourth proportional to 123,110.84, 169,864.02 and 74,711.67 is: 103,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,110.84 : 169,864.02 = 74,711.67 : x
  2. Step 2: Convert to fraction form
    123,110.84/169,864.02 = 74,711.67/x
  3. Step 3: Cross multiply
    123,110.84x = 169,864.02 × 74,711.67
  4. Step 4: Simplify right side
    123,110.84x = 12,690,824,607.11
  5. Step 5: Solve for x
    x = 12,690,824,607.11/123,110.84
  6. Step 6: Final answer
    x = 103,084.55

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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.