Home / 113,702.64-156,913.92-63,411.36

Finding the Fourth Proportional to 113,702.64, 156,913.92 and 63,411.36

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Solution

The fourth proportional to 113,702.64, 156,913.92 and 63,411.36 is: 87,510.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,702.64 : 156,913.92 = 63,411.36 : x
  2. Step 2: Convert to fraction form
    113,702.64/156,913.92 = 63,411.36/x
  3. Step 3: Cross multiply
    113,702.64x = 156,913.92 × 63,411.36
  4. Step 4: Simplify right side
    113,702.64x = 9,950,125,070.13
  5. Step 5: Solve for x
    x = 9,950,125,070.13/113,702.64
  6. Step 6: Final answer
    x = 87,510.06

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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.