Home / 154,434.18-231,492.66-87,731.88

Finding the Fourth Proportional to 154,434.18, 231,492.66 and 87,731.88

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Solution

The fourth proportional to 154,434.18, 231,492.66 and 87,731.88 is: 131,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,434.18 : 231,492.66 = 87,731.88 : x
  2. Step 2: Convert to fraction form
    154,434.18/231,492.66 = 87,731.88/x
  3. Step 3: Cross multiply
    154,434.18x = 231,492.66 × 87,731.88
  4. Step 4: Simplify right side
    154,434.18x = 20,309,286,268.00
  5. Step 5: Solve for x
    x = 20,309,286,268.00/154,434.18
  6. Step 6: Final answer
    x = 131,507.72

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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.