Home / 132,751.20-183,195.92-72,321.72

Finding the Fourth Proportional to 132,751.20, 183,195.92 and 72,321.72

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Solution

The fourth proportional to 132,751.20, 183,195.92 and 72,321.72 is: 99,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,751.20 : 183,195.92 = 72,321.72 : x
  2. Step 2: Convert to fraction form
    132,751.20/183,195.92 = 72,321.72/x
  3. Step 3: Cross multiply
    132,751.20x = 183,195.92 × 72,321.72
  4. Step 4: Simplify right side
    132,751.20x = 13,249,044,031.38
  5. Step 5: Solve for x
    x = 13,249,044,031.38/132,751.20
  6. Step 6: Final answer
    x = 99,803.57

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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.