Home / 157,844.30-217,821.54-86,224.64

Finding the Fourth Proportional to 157,844.30, 217,821.54 and 86,224.64

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Solution

The fourth proportional to 157,844.30, 217,821.54 and 86,224.64 is: 118,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,844.30 : 217,821.54 = 86,224.64 : x
  2. Step 2: Convert to fraction form
    157,844.30/217,821.54 = 86,224.64/x
  3. Step 3: Cross multiply
    157,844.30x = 217,821.54 × 86,224.64
  4. Step 4: Simplify right side
    157,844.30x = 18,781,583,870.75
  5. Step 5: Solve for x
    x = 18,781,583,870.75/157,844.30
  6. Step 6: Final answer
    x = 118,988.04

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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.