Home / 207,621.30-310,913.55-137,118.90

Finding the Fourth Proportional to 207,621.30, 310,913.55 and 137,118.90

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Solution

The fourth proportional to 207,621.30, 310,913.55 and 137,118.90 is: 205,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,621.30 : 310,913.55 = 137,118.90 : x
  2. Step 2: Convert to fraction form
    207,621.30/310,913.55 = 137,118.90/x
  3. Step 3: Cross multiply
    207,621.30x = 310,913.55 × 137,118.90
  4. Step 4: Simplify right side
    207,621.30x = 42,632,123,971.10
  5. Step 5: Solve for x
    x = 42,632,123,971.10/207,621.30
  6. Step 6: Final answer
    x = 205,335.98

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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.