Home / 185,614.12-256,140.42-100,728.36

Finding the Fourth Proportional to 185,614.12, 256,140.42 and 100,728.36

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Solution

The fourth proportional to 185,614.12, 256,140.42 and 100,728.36 is: 139,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,614.12 : 256,140.42 = 100,728.36 : x
  2. Step 2: Convert to fraction form
    185,614.12/256,140.42 = 100,728.36/x
  3. Step 3: Cross multiply
    185,614.12x = 256,140.42 × 100,728.36
  4. Step 4: Simplify right side
    185,614.12x = 25,800,604,436.31
  5. Step 5: Solve for x
    x = 25,800,604,436.31/185,614.12
  6. Step 6: Final answer
    x = 139,001.30

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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.