Home / 156,963.78-235,387.35-51,754.50

Finding the Fourth Proportional to 156,963.78, 235,387.35 and 51,754.50

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Solution

The fourth proportional to 156,963.78, 235,387.35 and 51,754.50 is: 77,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.78 : 235,387.35 = 51,754.50 : x
  2. Step 2: Convert to fraction form
    156,963.78/235,387.35 = 51,754.50/x
  3. Step 3: Cross multiply
    156,963.78x = 235,387.35 × 51,754.50
  4. Step 4: Simplify right side
    156,963.78x = 12,182,354,605.58
  5. Step 5: Solve for x
    x = 12,182,354,605.58/156,963.78
  6. Step 6: Final answer
    x = 77,612.52

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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.