Home / 148,984.38-205,595.46-81,002.70

Finding the Fourth Proportional to 148,984.38, 205,595.46 and 81,002.70

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Solution

The fourth proportional to 148,984.38, 205,595.46 and 81,002.70 is: 111,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,984.38 : 205,595.46 = 81,002.70 : x
  2. Step 2: Convert to fraction form
    148,984.38/205,595.46 = 81,002.70/x
  3. Step 3: Cross multiply
    148,984.38x = 205,595.46 × 81,002.70
  4. Step 4: Simplify right side
    148,984.38x = 16,653,787,367.74
  5. Step 5: Solve for x
    x = 16,653,787,367.74/148,984.38
  6. Step 6: Final answer
    x = 111,782.10

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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.