Home / 154,673.85-231,711.50-87,000.30

Finding the Fourth Proportional to 154,673.85, 231,711.50 and 87,000.30

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Solution

The fourth proportional to 154,673.85, 231,711.50 and 87,000.30 is: 130,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,673.85 : 231,711.50 = 87,000.30 : x
  2. Step 2: Convert to fraction form
    154,673.85/231,711.50 = 87,000.30/x
  3. Step 3: Cross multiply
    154,673.85x = 231,711.50 × 87,000.30
  4. Step 4: Simplify right side
    154,673.85x = 20,158,970,230.95
  5. Step 5: Solve for x
    x = 20,158,970,230.95/154,673.85
  6. Step 6: Final answer
    x = 130,332.12

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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.