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Finding the Fourth Proportional to 136,502.40, 204,753.60 and 89,263.20

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Solution

The fourth proportional to 136,502.40, 204,753.60 and 89,263.20 is: 133,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,502.40 : 204,753.60 = 89,263.20 : x
  2. Step 2: Convert to fraction form
    136,502.40/204,753.60 = 89,263.20/x
  3. Step 3: Cross multiply
    136,502.40x = 204,753.60 × 89,263.20
  4. Step 4: Simplify right side
    136,502.40x = 18,276,961,547.52
  5. Step 5: Solve for x
    x = 18,276,961,547.52/136,502.40
  6. Step 6: Final answer
    x = 133,894.80

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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.