Home / 181,511.30-272,364.15-81,686.90

Finding the Fourth Proportional to 181,511.30, 272,364.15 and 81,686.90

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Solution

The fourth proportional to 181,511.30, 272,364.15 and 81,686.90 is: 122,574.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,511.30 : 272,364.15 = 81,686.90 : x
  2. Step 2: Convert to fraction form
    181,511.30/272,364.15 = 81,686.90/x
  3. Step 3: Cross multiply
    181,511.30x = 272,364.15 × 81,686.90
  4. Step 4: Simplify right side
    181,511.30x = 22,248,583,084.64
  5. Step 5: Solve for x
    x = 22,248,583,084.64/181,511.30
  6. Step 6: Final answer
    x = 122,574.09

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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.