Home / 207,872.05-286,856.44-131,432.29

Finding the Fourth Proportional to 207,872.05, 286,856.44 and 131,432.29

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Solution

The fourth proportional to 207,872.05, 286,856.44 and 131,432.29 is: 181,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,872.05 : 286,856.44 = 131,432.29 : x
  2. Step 2: Convert to fraction form
    207,872.05/286,856.44 = 131,432.29/x
  3. Step 3: Cross multiply
    207,872.05x = 286,856.44 × 131,432.29
  4. Step 4: Simplify right side
    207,872.05x = 37,702,198,810.45
  5. Step 5: Solve for x
    x = 37,702,198,810.45/207,872.05
  6. Step 6: Final answer
    x = 181,372.14

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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.