Home / 156,743.90-235,115.85-51,549.20

Finding the Fourth Proportional to 156,743.90, 235,115.85 and 51,549.20

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Solution

The fourth proportional to 156,743.90, 235,115.85 and 51,549.20 is: 77,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,743.90 : 235,115.85 = 51,549.20 : x
  2. Step 2: Convert to fraction form
    156,743.90/235,115.85 = 51,549.20/x
  3. Step 3: Cross multiply
    156,743.90x = 235,115.85 × 51,549.20
  4. Step 4: Simplify right side
    156,743.90x = 12,120,033,974.82
  5. Step 5: Solve for x
    x = 12,120,033,974.82/156,743.90
  6. Step 6: Final answer
    x = 77,323.80

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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.