Home / 113,422.04-156,520.44-62,435.78

Finding the Fourth Proportional to 113,422.04, 156,520.44 and 62,435.78

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Solution

The fourth proportional to 113,422.04, 156,520.44 and 62,435.78 is: 86,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,422.04 : 156,520.44 = 62,435.78 : x
  2. Step 2: Convert to fraction form
    113,422.04/156,520.44 = 62,435.78/x
  3. Step 3: Cross multiply
    113,422.04x = 156,520.44 × 62,435.78
  4. Step 4: Simplify right side
    113,422.04x = 9,772,474,974.74
  5. Step 5: Solve for x
    x = 9,772,474,974.74/113,422.04
  6. Step 6: Final answer
    x = 86,160.29

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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.