Home / 147,922.38-221,938.98-76,800.62

Finding the Fourth Proportional to 147,922.38, 221,938.98 and 76,800.62

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Solution

The fourth proportional to 147,922.38, 221,938.98 and 76,800.62 is: 115,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,922.38 : 221,938.98 = 76,800.62 : x
  2. Step 2: Convert to fraction form
    147,922.38/221,938.98 = 76,800.62/x
  3. Step 3: Cross multiply
    147,922.38x = 221,938.98 × 76,800.62
  4. Step 4: Simplify right side
    147,922.38x = 17,045,051,266.17
  5. Step 5: Solve for x
    x = 17,045,051,266.17/147,922.38
  6. Step 6: Final answer
    x = 115,229.70

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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.