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Finding the Fourth Proportional to 115,365, 159,203.70 and 62,373

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Solution

The fourth proportional to 115,365, 159,203.70 and 62,373 is: 86,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,365 : 159,203.70 = 62,373 : x
  2. Step 2: Convert to fraction form
    115,365/159,203.70 = 62,373/x
  3. Step 3: Cross multiply
    115,365x = 159,203.70 × 62,373
  4. Step 4: Simplify right side
    115,365x = 9,930,012,380.10
  5. Step 5: Solve for x
    x = 9,930,012,380.10/115,365
  6. Step 6: Final answer
    x = 86,074.74

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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.