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Finding the Fourth Proportional to 108,373.75, 149,557.92 and 65,353.03

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Solution

The fourth proportional to 108,373.75, 149,557.92 and 65,353.03 is: 90,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,373.75 : 149,557.92 = 65,353.03 : x
  2. Step 2: Convert to fraction form
    108,373.75/149,557.92 = 65,353.03/x
  3. Step 3: Cross multiply
    108,373.75x = 149,557.92 × 65,353.03
  4. Step 4: Simplify right side
    108,373.75x = 9,774,062,484.71
  5. Step 5: Solve for x
    x = 9,774,062,484.71/108,373.75
  6. Step 6: Final answer
    x = 90,188.47

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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.