Home / 156,787.80-235,291.05-100,764.15

Finding the Fourth Proportional to 156,787.80, 235,291.05 and 100,764.15

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Solution

The fourth proportional to 156,787.80, 235,291.05 and 100,764.15 is: 151,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,787.80 : 235,291.05 = 100,764.15 : x
  2. Step 2: Convert to fraction form
    156,787.80/235,291.05 = 100,764.15/x
  3. Step 3: Cross multiply
    156,787.80x = 235,291.05 × 100,764.15
  4. Step 4: Simplify right side
    156,787.80x = 23,708,902,655.86
  5. Step 5: Solve for x
    x = 23,708,902,655.86/156,787.80
  6. Step 6: Final answer
    x = 151,216.50

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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.