Home / 185,613.12-256,139.04-100,727.36

Finding the Fourth Proportional to 185,613.12, 256,139.04 and 100,727.36

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Solution

The fourth proportional to 185,613.12, 256,139.04 and 100,727.36 is: 138,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,613.12 : 256,139.04 = 100,727.36 : x
  2. Step 2: Convert to fraction form
    185,613.12/256,139.04 = 100,727.36/x
  3. Step 3: Cross multiply
    185,613.12x = 256,139.04 × 100,727.36
  4. Step 4: Simplify right side
    185,613.12x = 25,800,209,292.13
  5. Step 5: Solve for x
    x = 25,800,209,292.13/185,613.12
  6. Step 6: Final answer
    x = 138,999.92

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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.