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Finding the Fourth Proportional to 103,204.64, 142,395 and 60,754.88

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Solution

The fourth proportional to 103,204.64, 142,395 and 60,754.88 is: 83,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,204.64 : 142,395 = 60,754.88 : x
  2. Step 2: Convert to fraction form
    103,204.64/142,395 = 60,754.88/x
  3. Step 3: Cross multiply
    103,204.64x = 142,395 × 60,754.88
  4. Step 4: Simplify right side
    103,204.64x = 8,651,191,137.60
  5. Step 5: Solve for x
    x = 8,651,191,137.60/103,204.64
  6. Step 6: Final answer
    x = 83,825.60

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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.