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Finding the Fourth Proportional to 195,687.60, 293,531.40 and 112,513.20

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Solution

The fourth proportional to 195,687.60, 293,531.40 and 112,513.20 is: 168,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,687.60 : 293,531.40 = 112,513.20 : x
  2. Step 2: Convert to fraction form
    195,687.60/293,531.40 = 112,513.20/x
  3. Step 3: Cross multiply
    195,687.60x = 293,531.40 × 112,513.20
  4. Step 4: Simplify right side
    195,687.60x = 33,026,157,114.48
  5. Step 5: Solve for x
    x = 33,026,157,114.48/195,687.60
  6. Step 6: Final answer
    x = 168,769.80

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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.