Home / 154,403.02-231,445.97-87,700.74

Finding the Fourth Proportional to 154,403.02, 231,445.97 and 87,700.74

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Solution

The fourth proportional to 154,403.02, 231,445.97 and 87,700.74 is: 131,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,403.02 : 231,445.97 = 87,700.74 : x
  2. Step 2: Convert to fraction form
    154,403.02/231,445.97 = 87,700.74/x
  3. Step 3: Cross multiply
    154,403.02x = 231,445.97 × 87,700.74
  4. Step 4: Simplify right side
    154,403.02x = 20,297,981,861.47
  5. Step 5: Solve for x
    x = 20,297,981,861.47/154,403.02
  6. Step 6: Final answer
    x = 131,461.04

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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.