Home / 202,686.24-279,638.82-131,156.76

Finding the Fourth Proportional to 202,686.24, 279,638.82 and 131,156.76

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Solution

The fourth proportional to 202,686.24, 279,638.82 and 131,156.76 is: 180,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,686.24 : 279,638.82 = 131,156.76 : x
  2. Step 2: Convert to fraction form
    202,686.24/279,638.82 = 131,156.76/x
  3. Step 3: Cross multiply
    202,686.24x = 279,638.82 × 131,156.76
  4. Step 4: Simplify right side
    202,686.24x = 36,676,521,601.42
  5. Step 5: Solve for x
    x = 36,676,521,601.42/202,686.24
  6. Step 6: Final answer
    x = 180,952.20

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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.