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Finding the Fourth Proportional to 145,960.52, 201,424.93 and 78,892.52

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Solution

The fourth proportional to 145,960.52, 201,424.93 and 78,892.52 is: 108,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,960.52 : 201,424.93 = 78,892.52 : x
  2. Step 2: Convert to fraction form
    145,960.52/201,424.93 = 78,892.52/x
  3. Step 3: Cross multiply
    145,960.52x = 201,424.93 × 78,892.52
  4. Step 4: Simplify right side
    145,960.52x = 15,890,919,114.17
  5. Step 5: Solve for x
    x = 15,890,919,114.17/145,960.52
  6. Step 6: Final answer
    x = 108,871.36

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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.