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Finding the Fourth Proportional to 115,232, 159,020.18 and 62,240

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Solution

The fourth proportional to 115,232, 159,020.18 and 62,240 is: 85,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,232 : 159,020.18 = 62,240 : x
  2. Step 2: Convert to fraction form
    115,232/159,020.18 = 62,240/x
  3. Step 3: Cross multiply
    115,232x = 159,020.18 × 62,240
  4. Step 4: Simplify right side
    115,232x = 9,897,416,003.20
  5. Step 5: Solve for x
    x = 9,897,416,003.20/115,232
  6. Step 6: Final answer
    x = 85,891.21

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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.