Home / 156,737.20-216,363.54-105,818.90

Finding the Fourth Proportional to 156,737.20, 216,363.54 and 105,818.90

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Solution

The fourth proportional to 156,737.20, 216,363.54 and 105,818.90 is: 146,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,737.20 : 216,363.54 = 105,818.90 : x
  2. Step 2: Convert to fraction form
    156,737.20/216,363.54 = 105,818.90/x
  3. Step 3: Cross multiply
    156,737.20x = 216,363.54 × 105,818.90
  4. Step 4: Simplify right side
    156,737.20x = 22,895,351,802.91
  5. Step 5: Solve for x
    x = 22,895,351,802.91/156,737.20
  6. Step 6: Final answer
    x = 146,074.78

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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.