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Finding the Fourth Proportional to 181,770.45, 272,646.11 and 55,407.65

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Solution

The fourth proportional to 181,770.45, 272,646.11 and 55,407.65 is: 83,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,770.45 : 272,646.11 = 55,407.65 : x
  2. Step 2: Convert to fraction form
    181,770.45/272,646.11 = 55,407.65/x
  3. Step 3: Cross multiply
    181,770.45x = 272,646.11 × 55,407.65
  4. Step 4: Simplify right side
    181,770.45x = 15,106,679,089.95
  5. Step 5: Solve for x
    x = 15,106,679,089.95/181,770.45
  6. Step 6: Final answer
    x = 83,108.55

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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.