Home / 154,035.98-231,086.38-87,506.90

Finding the Fourth Proportional to 154,035.98, 231,086.38 and 87,506.90

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Solution

The fourth proportional to 154,035.98, 231,086.38 and 87,506.90 is: 131,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,035.98 : 231,086.38 = 87,506.90 : x
  2. Step 2: Convert to fraction form
    154,035.98/231,086.38 = 87,506.90/x
  3. Step 3: Cross multiply
    154,035.98x = 231,086.38 × 87,506.90
  4. Step 4: Simplify right side
    154,035.98x = 20,221,652,746.02
  5. Step 5: Solve for x
    x = 20,221,652,746.02/154,035.98
  6. Step 6: Final answer
    x = 131,278.76

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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.