Home / 113,425.12-156,532.80-63,125.20

Finding the Fourth Proportional to 113,425.12, 156,532.80 and 63,125.20

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Solution

The fourth proportional to 113,425.12, 156,532.80 and 63,125.20 is: 87,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,425.12 : 156,532.80 = 63,125.20 : x
  2. Step 2: Convert to fraction form
    113,425.12/156,532.80 = 63,125.20/x
  3. Step 3: Cross multiply
    113,425.12x = 156,532.80 × 63,125.20
  4. Step 4: Simplify right side
    113,425.12x = 9,881,164,306.56
  5. Step 5: Solve for x
    x = 9,881,164,306.56/113,425.12
  6. Step 6: Final answer
    x = 87,116.19

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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.