Home / 231,545.32-347,359.29-81,872.51

Finding the Fourth Proportional to 231,545.32, 347,359.29 and 81,872.51

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Solution

The fourth proportional to 231,545.32, 347,359.29 and 81,872.51 is: 122,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,545.32 : 347,359.29 = 81,872.51 : x
  2. Step 2: Convert to fraction form
    231,545.32/347,359.29 = 81,872.51/x
  3. Step 3: Cross multiply
    231,545.32x = 347,359.29 × 81,872.51
  4. Step 4: Simplify right side
    231,545.32x = 28,439,174,900.30
  5. Step 5: Solve for x
    x = 28,439,174,900.30/231,545.32
  6. Step 6: Final answer
    x = 122,823.36

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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.