Home / 109,619.73-151,282.08-61,881.17

Finding the Fourth Proportional to 109,619.73, 151,282.08 and 61,881.17

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Solution

The fourth proportional to 109,619.73, 151,282.08 and 61,881.17 is: 85,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,619.73 : 151,282.08 = 61,881.17 : x
  2. Step 2: Convert to fraction form
    109,619.73/151,282.08 = 61,881.17/x
  3. Step 3: Cross multiply
    109,619.73x = 151,282.08 × 61,881.17
  4. Step 4: Simplify right side
    109,619.73x = 9,361,511,354.02
  5. Step 5: Solve for x
    x = 9,361,511,354.02/109,619.73
  6. Step 6: Final answer
    x = 85,399.88

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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.