Home / 112,892.81-155,793.78-61,910.19

Finding the Fourth Proportional to 112,892.81, 155,793.78 and 61,910.19

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Solution

The fourth proportional to 112,892.81, 155,793.78 and 61,910.19 is: 85,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,892.81 : 155,793.78 = 61,910.19 : x
  2. Step 2: Convert to fraction form
    112,892.81/155,793.78 = 61,910.19/x
  3. Step 3: Cross multiply
    112,892.81x = 155,793.78 × 61,910.19
  4. Step 4: Simplify right side
    112,892.81x = 9,645,222,520.62
  5. Step 5: Solve for x
    x = 9,645,222,520.62/112,892.81
  6. Step 6: Final answer
    x = 85,437.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.