Home / 147,678.92-221,507.61-57,704.72

Finding the Fourth Proportional to 147,678.92, 221,507.61 and 57,704.72

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Solution

The fourth proportional to 147,678.92, 221,507.61 and 57,704.72 is: 86,552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,678.92 : 221,507.61 = 57,704.72 : x
  2. Step 2: Convert to fraction form
    147,678.92/221,507.61 = 57,704.72/x
  3. Step 3: Cross multiply
    147,678.92x = 221,507.61 × 57,704.72
  4. Step 4: Simplify right side
    147,678.92x = 12,782,033,505.38
  5. Step 5: Solve for x
    x = 12,782,033,505.38/147,678.92
  6. Step 6: Final answer
    x = 86,552.87

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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.