Home / 142,098.24-213,147.90-89,376.96

Finding the Fourth Proportional to 142,098.24, 213,147.90 and 89,376.96

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Solution

The fourth proportional to 142,098.24, 213,147.90 and 89,376.96 is: 134,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,098.24 : 213,147.90 = 89,376.96 : x
  2. Step 2: Convert to fraction form
    142,098.24/213,147.90 = 89,376.96/x
  3. Step 3: Cross multiply
    142,098.24x = 213,147.90 × 89,376.96
  4. Step 4: Simplify right side
    142,098.24x = 19,050,511,332.38
  5. Step 5: Solve for x
    x = 19,050,511,332.38/142,098.24
  6. Step 6: Final answer
    x = 134,065.78

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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.