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Finding the Fourth Proportional to 88,146.88, 121,602 and 52,316.56

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Solution

The fourth proportional to 88,146.88, 121,602 and 52,316.56 is: 72,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,146.88 : 121,602 = 52,316.56 : x
  2. Step 2: Convert to fraction form
    88,146.88/121,602 = 52,316.56/x
  3. Step 3: Cross multiply
    88,146.88x = 121,602 × 52,316.56
  4. Step 4: Simplify right side
    88,146.88x = 6,361,798,329.12
  5. Step 5: Solve for x
    x = 6,361,798,329.12/88,146.88
  6. Step 6: Final answer
    x = 72,172.70

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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.