Home / 181,611.80-272,359.06-66,189.88

Finding the Fourth Proportional to 181,611.80, 272,359.06 and 66,189.88

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Solution

The fourth proportional to 181,611.80, 272,359.06 and 66,189.88 is: 99,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,611.80 : 272,359.06 = 66,189.88 : x
  2. Step 2: Convert to fraction form
    181,611.80/272,359.06 = 66,189.88/x
  3. Step 3: Cross multiply
    181,611.80x = 272,359.06 × 66,189.88
  4. Step 4: Simplify right side
    181,611.80x = 18,027,413,498.31
  5. Step 5: Solve for x
    x = 18,027,413,498.31/181,611.80
  6. Step 6: Final answer
    x = 99,263.45

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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.