Home / 142,714.72-196,947.66-86,115.16

Finding the Fourth Proportional to 142,714.72, 196,947.66 and 86,115.16

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Solution

The fourth proportional to 142,714.72, 196,947.66 and 86,115.16 is: 118,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,714.72 : 196,947.66 = 86,115.16 : x
  2. Step 2: Convert to fraction form
    142,714.72/196,947.66 = 86,115.16/x
  3. Step 3: Cross multiply
    142,714.72x = 196,947.66 × 86,115.16
  4. Step 4: Simplify right side
    142,714.72x = 16,960,179,252.53
  5. Step 5: Solve for x
    x = 16,960,179,252.53/142,714.72
  6. Step 6: Final answer
    x = 118,839.73

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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.