Home / 157,622.82-217,517.70-86,001.30

Finding the Fourth Proportional to 157,622.82, 217,517.70 and 86,001.30

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Solution

The fourth proportional to 157,622.82, 217,517.70 and 86,001.30 is: 118,680.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,622.82 : 217,517.70 = 86,001.30 : x
  2. Step 2: Convert to fraction form
    157,622.82/217,517.70 = 86,001.30/x
  3. Step 3: Cross multiply
    157,622.82x = 217,517.70 × 86,001.30
  4. Step 4: Simplify right side
    157,622.82x = 18,706,804,973.01
  5. Step 5: Solve for x
    x = 18,706,804,973.01/157,622.82
  6. Step 6: Final answer
    x = 118,680.82

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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.