Home / 131,864.72-181,991.88-75,279.44

Finding the Fourth Proportional to 131,864.72, 181,991.88 and 75,279.44

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Solution

The fourth proportional to 131,864.72, 181,991.88 and 75,279.44 is: 103,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,864.72 : 181,991.88 = 75,279.44 : x
  2. Step 2: Convert to fraction form
    131,864.72/181,991.88 = 75,279.44/x
  3. Step 3: Cross multiply
    131,864.72x = 181,991.88 × 75,279.44
  4. Step 4: Simplify right side
    131,864.72x = 13,700,246,810.95
  5. Step 5: Solve for x
    x = 13,700,246,810.95/131,864.72
  6. Step 6: Final answer
    x = 103,896.23

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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.