Home / 172,187.68-237,647.20-143,461.78

Finding the Fourth Proportional to 172,187.68, 237,647.20 and 143,461.78

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Solution

The fourth proportional to 172,187.68, 237,647.20 and 143,461.78 is: 198,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,187.68 : 237,647.20 = 143,461.78 : x
  2. Step 2: Convert to fraction form
    172,187.68/237,647.20 = 143,461.78/x
  3. Step 3: Cross multiply
    172,187.68x = 237,647.20 × 143,461.78
  4. Step 4: Simplify right side
    172,187.68x = 34,093,290,324.02
  5. Step 5: Solve for x
    x = 34,093,290,324.02/172,187.68
  6. Step 6: Final answer
    x = 198,000.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.