Home / 106,382.43-159,573.78-99,887.04

Finding the Fourth Proportional to 106,382.43, 159,573.78 and 99,887.04

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Solution

The fourth proportional to 106,382.43, 159,573.78 and 99,887.04 is: 149,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,382.43 : 159,573.78 = 99,887.04 : x
  2. Step 2: Convert to fraction form
    106,382.43/159,573.78 = 99,887.04/x
  3. Step 3: Cross multiply
    106,382.43x = 159,573.78 × 99,887.04
  4. Step 4: Simplify right side
    106,382.43x = 15,939,352,545.81
  5. Step 5: Solve for x
    x = 15,939,352,545.81/106,382.43
  6. Step 6: Final answer
    x = 149,830.69

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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.