Home / 148,862.59-205,429.50-80,879.02

Finding the Fourth Proportional to 148,862.59, 205,429.50 and 80,879.02

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Solution

The fourth proportional to 148,862.59, 205,429.50 and 80,879.02 is: 111,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,862.59 : 205,429.50 = 80,879.02 : x
  2. Step 2: Convert to fraction form
    148,862.59/205,429.50 = 80,879.02/x
  3. Step 3: Cross multiply
    148,862.59x = 205,429.50 × 80,879.02
  4. Step 4: Simplify right side
    148,862.59x = 16,614,936,125.52
  5. Step 5: Solve for x
    x = 16,614,936,125.52/148,862.59
  6. Step 6: Final answer
    x = 111,612.57

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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.