Home / 161,964.20-243,013.50-73,156.52

Finding the Fourth Proportional to 161,964.20, 243,013.50 and 73,156.52

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Solution

The fourth proportional to 161,964.20, 243,013.50 and 73,156.52 is: 109,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,964.20 : 243,013.50 = 73,156.52 : x
  2. Step 2: Convert to fraction form
    161,964.20/243,013.50 = 73,156.52/x
  3. Step 3: Cross multiply
    161,964.20x = 243,013.50 × 73,156.52
  4. Step 4: Simplify right side
    161,964.20x = 17,778,021,973.02
  5. Step 5: Solve for x
    x = 17,778,021,973.02/161,964.20
  6. Step 6: Final answer
    x = 109,765.13

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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.