Home / 185,525.13-256,025.18-100,642.20

Finding the Fourth Proportional to 185,525.13, 256,025.18 and 100,642.20

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Solution

The fourth proportional to 185,525.13, 256,025.18 and 100,642.20 is: 138,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,525.13 : 256,025.18 = 100,642.20 : x
  2. Step 2: Convert to fraction form
    185,525.13/256,025.18 = 100,642.20/x
  3. Step 3: Cross multiply
    185,525.13x = 256,025.18 × 100,642.20
  4. Step 4: Simplify right side
    185,525.13x = 25,766,936,662.11
  5. Step 5: Solve for x
    x = 25,766,936,662.11/185,525.13
  6. Step 6: Final answer
    x = 138,886.50

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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.