Home / 145,120.12-217,422.38-123,844.25

Finding the Fourth Proportional to 145,120.12, 217,422.38 and 123,844.25

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Solution

The fourth proportional to 145,120.12, 217,422.38 and 123,844.25 is: 185,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,120.12 : 217,422.38 = 123,844.25 : x
  2. Step 2: Convert to fraction form
    145,120.12/217,422.38 = 123,844.25/x
  3. Step 3: Cross multiply
    145,120.12x = 217,422.38 × 123,844.25
  4. Step 4: Simplify right side
    145,120.12x = 26,926,512,437.48
  5. Step 5: Solve for x
    x = 26,926,512,437.48/145,120.12
  6. Step 6: Final answer
    x = 185,546.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.