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Finding the Fourth Proportional to 89,461.60, 134,192.40 and 82,703.20

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Solution

The fourth proportional to 89,461.60, 134,192.40 and 82,703.20 is: 124,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,461.60 : 134,192.40 = 82,703.20 : x
  2. Step 2: Convert to fraction form
    89,461.60/134,192.40 = 82,703.20/x
  3. Step 3: Cross multiply
    89,461.60x = 134,192.40 × 82,703.20
  4. Step 4: Simplify right side
    89,461.60x = 11,098,140,895.68
  5. Step 5: Solve for x
    x = 11,098,140,895.68/89,461.60
  6. Step 6: Final answer
    x = 124,054.80

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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.