Home / 87,174.20-130,562.04-68,411.36

Finding the Fourth Proportional to 87,174.20, 130,562.04 and 68,411.36

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Solution

The fourth proportional to 87,174.20, 130,562.04 and 68,411.36 is: 102,460.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,174.20 : 130,562.04 = 68,411.36 : x
  2. Step 2: Convert to fraction form
    87,174.20/130,562.04 = 68,411.36/x
  3. Step 3: Cross multiply
    87,174.20x = 130,562.04 × 68,411.36
  4. Step 4: Simplify right side
    87,174.20x = 8,931,926,720.77
  5. Step 5: Solve for x
    x = 8,931,926,720.77/87,174.20
  6. Step 6: Final answer
    x = 102,460.67

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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.