Home / 113,671.52-156,863.08-62,686.40

Finding the Fourth Proportional to 113,671.52, 156,863.08 and 62,686.40

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Solution

The fourth proportional to 113,671.52, 156,863.08 and 62,686.40 is: 86,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,671.52 : 156,863.08 = 62,686.40 : x
  2. Step 2: Convert to fraction form
    113,671.52/156,863.08 = 62,686.40/x
  3. Step 3: Cross multiply
    113,671.52x = 156,863.08 × 62,686.40
  4. Step 4: Simplify right side
    113,671.52x = 9,833,180,993.80
  5. Step 5: Solve for x
    x = 9,833,180,993.80/113,671.52
  6. Step 6: Final answer
    x = 86,505.23

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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.