Home / 109,891.86-151,640.55-62,145.06

Finding the Fourth Proportional to 109,891.86, 151,640.55 and 62,145.06

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Solution

The fourth proportional to 109,891.86, 151,640.55 and 62,145.06 is: 85,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,891.86 : 151,640.55 = 62,145.06 : x
  2. Step 2: Convert to fraction form
    109,891.86/151,640.55 = 62,145.06/x
  3. Step 3: Cross multiply
    109,891.86x = 151,640.55 × 62,145.06
  4. Step 4: Simplify right side
    109,891.86x = 9,423,711,078.18
  5. Step 5: Solve for x
    x = 9,423,711,078.18/109,891.86
  6. Step 6: Final answer
    x = 85,754.41

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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.