Home / 156,285.42-234,378.92-89,756.88

Finding the Fourth Proportional to 156,285.42, 234,378.92 and 89,756.88

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Solution

The fourth proportional to 156,285.42, 234,378.92 and 89,756.88 is: 134,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,285.42 : 234,378.92 = 89,756.88 : x
  2. Step 2: Convert to fraction form
    156,285.42/234,378.92 = 89,756.88/x
  3. Step 3: Cross multiply
    156,285.42x = 234,378.92 × 89,756.88
  4. Step 4: Simplify right side
    156,285.42x = 21,037,120,596.97
  5. Step 5: Solve for x
    x = 21,037,120,596.97/156,285.42
  6. Step 6: Final answer
    x = 134,607.06

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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.