Home / 100,537.64-138,702.18-58,088.36

Finding the Fourth Proportional to 100,537.64, 138,702.18 and 58,088.36

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Solution

The fourth proportional to 100,537.64, 138,702.18 and 58,088.36 is: 80,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,537.64 : 138,702.18 = 58,088.36 : x
  2. Step 2: Convert to fraction form
    100,537.64/138,702.18 = 58,088.36/x
  3. Step 3: Cross multiply
    100,537.64x = 138,702.18 × 58,088.36
  4. Step 4: Simplify right side
    100,537.64x = 8,056,982,164.62
  5. Step 5: Solve for x
    x = 8,056,982,164.62/100,537.64
  6. Step 6: Final answer
    x = 80,138.96

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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.