Home / 113,741.78-156,963.60-63,440.78

Finding the Fourth Proportional to 113,741.78, 156,963.60 and 63,440.78

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Solution

The fourth proportional to 113,741.78, 156,963.60 and 63,440.78 is: 87,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,741.78 : 156,963.60 = 63,440.78 : x
  2. Step 2: Convert to fraction form
    113,741.78/156,963.60 = 63,440.78/x
  3. Step 3: Cross multiply
    113,741.78x = 156,963.60 × 63,440.78
  4. Step 4: Simplify right side
    113,741.78x = 9,957,893,215.61
  5. Step 5: Solve for x
    x = 9,957,893,215.61/113,741.78
  6. Step 6: Final answer
    x = 87,548.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.