Home / 131,824.59-181,918.21-72,888.61

Finding the Fourth Proportional to 131,824.59, 181,918.21 and 72,888.61

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Solution

The fourth proportional to 131,824.59, 181,918.21 and 72,888.61 is: 100,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,824.59 : 181,918.21 = 72,888.61 : x
  2. Step 2: Convert to fraction form
    131,824.59/181,918.21 = 72,888.61/x
  3. Step 3: Cross multiply
    131,824.59x = 181,918.21 × 72,888.61
  4. Step 4: Simplify right side
    131,824.59x = 13,259,765,006.65
  5. Step 5: Solve for x
    x = 13,259,765,006.65/131,824.59
  6. Step 6: Final answer
    x = 100,586.43

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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.