Home / 100,724.88-151,019.16-56,382.24

Finding the Fourth Proportional to 100,724.88, 151,019.16 and 56,382.24

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Solution

The fourth proportional to 100,724.88, 151,019.16 and 56,382.24 is: 84,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,724.88 : 151,019.16 = 56,382.24 : x
  2. Step 2: Convert to fraction form
    100,724.88/151,019.16 = 56,382.24/x
  3. Step 3: Cross multiply
    100,724.88x = 151,019.16 × 56,382.24
  4. Step 4: Simplify right side
    100,724.88x = 8,514,798,523.72
  5. Step 5: Solve for x
    x = 8,514,798,523.72/100,724.88
  6. Step 6: Final answer
    x = 84,535.21

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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.