Home / 239,715.45-359,320.41-79,748.66

Finding the Fourth Proportional to 239,715.45, 359,320.41 and 79,748.66

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Solution

The fourth proportional to 239,715.45, 359,320.41 and 79,748.66 is: 119,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,715.45 : 359,320.41 = 79,748.66 : x
  2. Step 2: Convert to fraction form
    239,715.45/359,320.41 = 79,748.66/x
  3. Step 3: Cross multiply
    239,715.45x = 359,320.41 × 79,748.66
  4. Step 4: Simplify right side
    239,715.45x = 28,655,319,411.55
  5. Step 5: Solve for x
    x = 28,655,319,411.55/239,715.45
  6. Step 6: Final answer
    x = 119,538.89

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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.