Home / 137,763.90-206,568.18-47,764.40

Finding the Fourth Proportional to 137,763.90, 206,568.18 and 47,764.40

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Solution

The fourth proportional to 137,763.90, 206,568.18 and 47,764.40 is: 71,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,763.90 : 206,568.18 = 47,764.40 : x
  2. Step 2: Convert to fraction form
    137,763.90/206,568.18 = 47,764.40/x
  3. Step 3: Cross multiply
    137,763.90x = 206,568.18 × 47,764.40
  4. Step 4: Simplify right side
    137,763.90x = 9,866,604,143.95
  5. Step 5: Solve for x
    x = 9,866,604,143.95/137,763.90
  6. Step 6: Final answer
    x = 71,619.66

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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.