Home / 109,664.61-151,335.86-61,919.97

Finding the Fourth Proportional to 109,664.61, 151,335.86 and 61,919.97

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Solution

The fourth proportional to 109,664.61, 151,335.86 and 61,919.97 is: 85,448.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,664.61 : 151,335.86 = 61,919.97 : x
  2. Step 2: Convert to fraction form
    109,664.61/151,335.86 = 61,919.97/x
  3. Step 3: Cross multiply
    109,664.61x = 151,335.86 × 61,919.97
  4. Step 4: Simplify right side
    109,664.61x = 9,370,711,601.52
  5. Step 5: Solve for x
    x = 9,370,711,601.52/109,664.61
  6. Step 6: Final answer
    x = 85,448.82

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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.