Home / 100,016.15-138,022.28-54,694.16

Finding the Fourth Proportional to 100,016.15, 138,022.28 and 54,694.16

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Solution

The fourth proportional to 100,016.15, 138,022.28 and 54,694.16 is: 75,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,016.15 : 138,022.28 = 54,694.16 : x
  2. Step 2: Convert to fraction form
    100,016.15/138,022.28 = 54,694.16/x
  3. Step 3: Cross multiply
    100,016.15x = 138,022.28 × 54,694.16
  4. Step 4: Simplify right side
    100,016.15x = 7,549,011,702.30
  5. Step 5: Solve for x
    x = 7,549,011,702.30/100,016.15
  6. Step 6: Final answer
    x = 75,477.93

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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.