Home / 100,202.29-138,281.24-54,882.18

Finding the Fourth Proportional to 100,202.29, 138,281.24 and 54,882.18

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Solution

The fourth proportional to 100,202.29, 138,281.24 and 54,882.18 is: 75,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,202.29 : 138,281.24 = 54,882.18 : x
  2. Step 2: Convert to fraction form
    100,202.29/138,281.24 = 54,882.18/x
  3. Step 3: Cross multiply
    100,202.29x = 138,281.24 × 54,882.18
  4. Step 4: Simplify right side
    100,202.29x = 7,589,176,041.51
  5. Step 5: Solve for x
    x = 7,589,176,041.51/100,202.29
  6. Step 6: Final answer
    x = 75,738.55

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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.