Home / 100,218.62-138,300.18-54,896.24

Finding the Fourth Proportional to 100,218.62, 138,300.18 and 54,896.24

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Solution

The fourth proportional to 100,218.62, 138,300.18 and 54,896.24 is: 75,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,218.62 : 138,300.18 = 54,896.24 : x
  2. Step 2: Convert to fraction form
    100,218.62/138,300.18 = 54,896.24/x
  3. Step 3: Cross multiply
    100,218.62x = 138,300.18 × 54,896.24
  4. Step 4: Simplify right side
    100,218.62x = 7,592,159,873.32
  5. Step 5: Solve for x
    x = 7,592,159,873.32/100,218.62
  6. Step 6: Final answer
    x = 75,755.98

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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.