Home / 156,780.10-235,170.15-155,905.30

Finding the Fourth Proportional to 156,780.10, 235,170.15 and 155,905.30

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Solution

The fourth proportional to 156,780.10, 235,170.15 and 155,905.30 is: 233,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,780.10 : 235,170.15 = 155,905.30 : x
  2. Step 2: Convert to fraction form
    156,780.10/235,170.15 = 155,905.30/x
  3. Step 3: Cross multiply
    156,780.10x = 235,170.15 × 155,905.30
  4. Step 4: Simplify right side
    156,780.10x = 36,664,272,786.80
  5. Step 5: Solve for x
    x = 36,664,272,786.80/156,780.10
  6. Step 6: Final answer
    x = 233,857.95

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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.