Home / 132,756.80-183,120.68-79,001.69

Finding the Fourth Proportional to 132,756.80, 183,120.68 and 79,001.69

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Solution

The fourth proportional to 132,756.80, 183,120.68 and 79,001.69 is: 108,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,756.80 : 183,120.68 = 79,001.69 : x
  2. Step 2: Convert to fraction form
    132,756.80/183,120.68 = 79,001.69/x
  3. Step 3: Cross multiply
    132,756.80x = 183,120.68 × 79,001.69
  4. Step 4: Simplify right side
    132,756.80x = 14,466,842,475.85
  5. Step 5: Solve for x
    x = 14,466,842,475.85/132,756.80
  6. Step 6: Final answer
    x = 108,972.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.