Home / 102,446.20-153,669.30-74,561.95

Finding the Fourth Proportional to 102,446.20, 153,669.30 and 74,561.95

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Solution

The fourth proportional to 102,446.20, 153,669.30 and 74,561.95 is: 111,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,446.20 : 153,669.30 = 74,561.95 : x
  2. Step 2: Convert to fraction form
    102,446.20/153,669.30 = 74,561.95/x
  3. Step 3: Cross multiply
    102,446.20x = 153,669.30 × 74,561.95
  4. Step 4: Simplify right side
    102,446.20x = 11,457,882,663.14
  5. Step 5: Solve for x
    x = 11,457,882,663.14/102,446.20
  6. Step 6: Final answer
    x = 111,842.93

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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.