Home / 156,464.80-215,952.05-102,748.43

Finding the Fourth Proportional to 156,464.80, 215,952.05 and 102,748.43

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Solution

The fourth proportional to 156,464.80, 215,952.05 and 102,748.43 is: 141,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,464.80 : 215,952.05 = 102,748.43 : x
  2. Step 2: Convert to fraction form
    156,464.80/215,952.05 = 102,748.43/x
  3. Step 3: Cross multiply
    156,464.80x = 215,952.05 × 102,748.43
  4. Step 4: Simplify right side
    156,464.80x = 22,188,734,889.53
  5. Step 5: Solve for x
    x = 22,188,734,889.53/156,464.80
  6. Step 6: Final answer
    x = 141,812.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.