Home / 131,876.22-181,988.40-71,448.04

Finding the Fourth Proportional to 131,876.22, 181,988.40 and 71,448.04

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Solution

The fourth proportional to 131,876.22, 181,988.40 and 71,448.04 is: 98,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,876.22 : 181,988.40 = 71,448.04 : x
  2. Step 2: Convert to fraction form
    131,876.22/181,988.40 = 71,448.04/x
  3. Step 3: Cross multiply
    131,876.22x = 181,988.40 × 71,448.04
  4. Step 4: Simplify right side
    131,876.22x = 13,002,714,482.74
  5. Step 5: Solve for x
    x = 13,002,714,482.74/131,876.22
  6. Step 6: Final answer
    x = 98,597.87

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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.