Home / 154,032.30-231,048.45-87,446.70

Finding the Fourth Proportional to 154,032.30, 231,048.45 and 87,446.70

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Solution

The fourth proportional to 154,032.30, 231,048.45 and 87,446.70 is: 131,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,032.30 : 231,048.45 = 87,446.70 : x
  2. Step 2: Convert to fraction form
    154,032.30/231,048.45 = 87,446.70/x
  3. Step 3: Cross multiply
    154,032.30x = 231,048.45 × 87,446.70
  4. Step 4: Simplify right side
    154,032.30x = 20,204,424,492.62
  5. Step 5: Solve for x
    x = 20,204,424,492.62/154,032.30
  6. Step 6: Final answer
    x = 131,170.05

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1.5x scale

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.