Home / 161,013.20-241,519.80-82,281.20

Finding the Fourth Proportional to 161,013.20, 241,519.80 and 82,281.20

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Solution

The fourth proportional to 161,013.20, 241,519.80 and 82,281.20 is: 123,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,013.20 : 241,519.80 = 82,281.20 : x
  2. Step 2: Convert to fraction form
    161,013.20/241,519.80 = 82,281.20/x
  3. Step 3: Cross multiply
    161,013.20x = 241,519.80 × 82,281.20
  4. Step 4: Simplify right side
    161,013.20x = 19,872,538,967.76
  5. Step 5: Solve for x
    x = 19,872,538,967.76/161,013.20
  6. Step 6: Final answer
    x = 123,421.80

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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.