Home / 154,197.72-231,139.02-87,496.95

Finding the Fourth Proportional to 154,197.72, 231,139.02 and 87,496.95

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Solution

The fourth proportional to 154,197.72, 231,139.02 and 87,496.95 is: 131,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,197.72 : 231,139.02 = 87,496.95 : x
  2. Step 2: Convert to fraction form
    154,197.72/231,139.02 = 87,496.95/x
  3. Step 3: Cross multiply
    154,197.72x = 231,139.02 × 87,496.95
  4. Step 4: Simplify right side
    154,197.72x = 20,223,959,275.99
  5. Step 5: Solve for x
    x = 20,223,959,275.99/154,197.72
  6. Step 6: Final answer
    x = 131,156.02

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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.