Home / 185,873.17-256,505.66-100,990.23

Finding the Fourth Proportional to 185,873.17, 256,505.66 and 100,990.23

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Solution

The fourth proportional to 185,873.17, 256,505.66 and 100,990.23 is: 139,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,873.17 : 256,505.66 = 100,990.23 : x
  2. Step 2: Convert to fraction form
    185,873.17/256,505.66 = 100,990.23/x
  3. Step 3: Cross multiply
    185,873.17x = 256,505.66 × 100,990.23
  4. Step 4: Simplify right side
    185,873.17x = 25,904,565,238.66
  5. Step 5: Solve for x
    x = 25,904,565,238.66/185,873.17
  6. Step 6: Final answer
    x = 139,366.89

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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.