Home / 147,865.38-221,885.91-54,436.74

Finding the Fourth Proportional to 147,865.38, 221,885.91 and 54,436.74

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Solution

The fourth proportional to 147,865.38, 221,885.91 and 54,436.74 is: 81,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,865.38 : 221,885.91 = 54,436.74 : x
  2. Step 2: Convert to fraction form
    147,865.38/221,885.91 = 54,436.74/x
  3. Step 3: Cross multiply
    147,865.38x = 221,885.91 × 54,436.74
  4. Step 4: Simplify right side
    147,865.38x = 12,078,745,592.33
  5. Step 5: Solve for x
    x = 12,078,745,592.33/147,865.38
  6. Step 6: Final answer
    x = 81,687.45

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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.