Home / 239,320.34-359,023.20-79,405.86

Finding the Fourth Proportional to 239,320.34, 359,023.20 and 79,405.86

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Solution

The fourth proportional to 239,320.34, 359,023.20 and 79,405.86 is: 119,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,320.34 : 359,023.20 = 79,405.86 : x
  2. Step 2: Convert to fraction form
    239,320.34/359,023.20 = 79,405.86/x
  3. Step 3: Cross multiply
    239,320.34x = 359,023.20 × 79,405.86
  4. Step 4: Simplify right side
    239,320.34x = 28,508,547,004.52
  5. Step 5: Solve for x
    x = 28,508,547,004.52/239,320.34
  6. Step 6: Final answer
    x = 119,122.96

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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.