Home / 202,872.72-279,870.02-131,275.88

Finding the Fourth Proportional to 202,872.72, 279,870.02 and 131,275.88

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Solution

The fourth proportional to 202,872.72, 279,870.02 and 131,275.88 is: 181,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,872.72 : 279,870.02 = 131,275.88 : x
  2. Step 2: Convert to fraction form
    202,872.72/279,870.02 = 131,275.88/x
  3. Step 3: Cross multiply
    202,872.72x = 279,870.02 × 131,275.88
  4. Step 4: Simplify right side
    202,872.72x = 36,740,183,161.12
  5. Step 5: Solve for x
    x = 36,740,183,161.12/202,872.72
  6. Step 6: Final answer
    x = 181,099.67

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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.