Home / 207,769.85-312,304.95-137,146.46

Finding the Fourth Proportional to 207,769.85, 312,304.95 and 137,146.46

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Solution

The fourth proportional to 207,769.85, 312,304.95 and 137,146.46 is: 206,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,769.85 : 312,304.95 = 137,146.46 : x
  2. Step 2: Convert to fraction form
    207,769.85/312,304.95 = 137,146.46/x
  3. Step 3: Cross multiply
    207,769.85x = 312,304.95 × 137,146.46
  4. Step 4: Simplify right side
    207,769.85x = 42,831,516,771.45
  5. Step 5: Solve for x
    x = 42,831,516,771.45/207,769.85
  6. Step 6: Final answer
    x = 206,148.86

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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.