Home / 181,562.80-272,214.60-81,641.20

Finding the Fourth Proportional to 181,562.80, 272,214.60 and 81,641.20

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Solution

The fourth proportional to 181,562.80, 272,214.60 and 81,641.20 is: 122,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,562.80 : 272,214.60 = 81,641.20 : x
  2. Step 2: Convert to fraction form
    181,562.80/272,214.60 = 81,641.20/x
  3. Step 3: Cross multiply
    181,562.80x = 272,214.60 × 81,641.20
  4. Step 4: Simplify right side
    181,562.80x = 22,223,926,601.52
  5. Step 5: Solve for x
    x = 22,223,926,601.52/181,562.80
  6. Step 6: Final answer
    x = 122,403.52

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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.