Home / 156,724.90-235,125.15-51,538.30

Finding the Fourth Proportional to 156,724.90, 235,125.15 and 51,538.30

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Solution

The fourth proportional to 156,724.90, 235,125.15 and 51,538.30 is: 77,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,724.90 : 235,125.15 = 51,538.30 : x
  2. Step 2: Convert to fraction form
    156,724.90/235,125.15 = 51,538.30/x
  3. Step 3: Cross multiply
    156,724.90x = 235,125.15 × 51,538.30
  4. Step 4: Simplify right side
    156,724.90x = 12,117,950,518.25
  5. Step 5: Solve for x
    x = 12,117,950,518.25/156,724.90
  6. Step 6: Final answer
    x = 77,319.88

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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.