Home / 109,791.40-151,398.18-93,928.36

Finding the Fourth Proportional to 109,791.40, 151,398.18 and 93,928.36

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Solution

The fourth proportional to 109,791.40, 151,398.18 and 93,928.36 is: 129,523.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,791.40 : 151,398.18 = 93,928.36 : x
  2. Step 2: Convert to fraction form
    109,791.40/151,398.18 = 93,928.36/x
  3. Step 3: Cross multiply
    109,791.40x = 151,398.18 × 93,928.36
  4. Step 4: Simplify right side
    109,791.40x = 14,220,582,754.38
  5. Step 5: Solve for x
    x = 14,220,582,754.38/109,791.40
  6. Step 6: Final answer
    x = 129,523.65

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1.5x scale

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.