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Finding the Fourth Proportional to 121,681.70, 182,522.55 and 88,244.90

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Solution

The fourth proportional to 121,681.70, 182,522.55 and 88,244.90 is: 132,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,681.70 : 182,522.55 = 88,244.90 : x
  2. Step 2: Convert to fraction form
    121,681.70/182,522.55 = 88,244.90/x
  3. Step 3: Cross multiply
    121,681.70x = 182,522.55 × 88,244.90
  4. Step 4: Simplify right side
    121,681.70x = 16,106,684,172.50
  5. Step 5: Solve for x
    x = 16,106,684,172.50/121,681.70
  6. Step 6: Final answer
    x = 132,367.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.