Home / 185,595.04-256,121.81-100,712.10

Finding the Fourth Proportional to 185,595.04, 256,121.81 and 100,712.10

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Solution

The fourth proportional to 185,595.04, 256,121.81 and 100,712.10 is: 138,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,595.04 : 256,121.81 = 100,712.10 : x
  2. Step 2: Convert to fraction form
    185,595.04/256,121.81 = 100,712.10/x
  3. Step 3: Cross multiply
    185,595.04x = 256,121.81 × 100,712.10
  4. Step 4: Simplify right side
    185,595.04x = 25,794,565,340.90
  5. Step 5: Solve for x
    x = 25,794,565,340.90/185,595.04
  6. Step 6: Final answer
    x = 138,983.05

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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.