Home / 83,133.30-124,585.02-72,012.42

Finding the Fourth Proportional to 83,133.30, 124,585.02 and 72,012.42

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Solution

The fourth proportional to 83,133.30, 124,585.02 and 72,012.42 is: 107,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133.30 : 124,585.02 = 72,012.42 : x
  2. Step 2: Convert to fraction form
    83,133.30/124,585.02 = 72,012.42/x
  3. Step 3: Cross multiply
    83,133.30x = 124,585.02 × 72,012.42
  4. Step 4: Simplify right side
    83,133.30x = 8,971,668,785.95
  5. Step 5: Solve for x
    x = 8,971,668,785.95/83,133.30
  6. Step 6: Final answer
    x = 107,919.07

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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.