Home / 124,394.40-186,640.20-45,514.80

Finding the Fourth Proportional to 124,394.40, 186,640.20 and 45,514.80

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Solution

The fourth proportional to 124,394.40, 186,640.20 and 45,514.80 is: 68,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,394.40 : 186,640.20 = 45,514.80 : x
  2. Step 2: Convert to fraction form
    124,394.40/186,640.20 = 45,514.80/x
  3. Step 3: Cross multiply
    124,394.40x = 186,640.20 × 45,514.80
  4. Step 4: Simplify right side
    124,394.40x = 8,494,891,374.96
  5. Step 5: Solve for x
    x = 8,494,891,374.96/124,394.40
  6. Step 6: Final answer
    x = 68,289.98

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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.