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Finding the Fourth Proportional to 113,559, 156,711.42 and 63,261.24

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Solution

The fourth proportional to 113,559, 156,711.42 and 63,261.24 is: 87,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,559 : 156,711.42 = 63,261.24 : x
  2. Step 2: Convert to fraction form
    113,559/156,711.42 = 63,261.24/x
  3. Step 3: Cross multiply
    113,559x = 156,711.42 × 63,261.24
  4. Step 4: Simplify right side
    113,559x = 9,913,758,751.36
  5. Step 5: Solve for x
    x = 9,913,758,751.36/113,559
  6. Step 6: Final answer
    x = 87,300.51

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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.