Home / 136,976.31-205,445.34-47,017.62

Finding the Fourth Proportional to 136,976.31, 205,445.34 and 47,017.62

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Solution

The fourth proportional to 136,976.31, 205,445.34 and 47,017.62 is: 70,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,976.31 : 205,445.34 = 47,017.62 : x
  2. Step 2: Convert to fraction form
    136,976.31/205,445.34 = 47,017.62/x
  3. Step 3: Cross multiply
    136,976.31x = 205,445.34 × 47,017.62
  4. Step 4: Simplify right side
    136,976.31x = 9,659,550,926.89
  5. Step 5: Solve for x
    x = 9,659,550,926.89/136,976.31
  6. Step 6: Final answer
    x = 70,519.87

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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.