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Finding the Fourth Proportional to 89,118.60, 133,677.90 and 88,504.20

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Solution

The fourth proportional to 89,118.60, 133,677.90 and 88,504.20 is: 132,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,118.60 : 133,677.90 = 88,504.20 : x
  2. Step 2: Convert to fraction form
    89,118.60/133,677.90 = 88,504.20/x
  3. Step 3: Cross multiply
    89,118.60x = 133,677.90 × 88,504.20
  4. Step 4: Simplify right side
    89,118.60x = 11,831,055,597.18
  5. Step 5: Solve for x
    x = 11,831,055,597.18/89,118.60
  6. Step 6: Final answer
    x = 132,756.30

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1.5x scale

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.