Home / 115,411.20-159,266.23-67,655.31

Finding the Fourth Proportional to 115,411.20, 159,266.23 and 67,655.31

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Solution

The fourth proportional to 115,411.20, 159,266.23 and 67,655.31 is: 93,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,411.20 : 159,266.23 = 67,655.31 : x
  2. Step 2: Convert to fraction form
    115,411.20/159,266.23 = 67,655.31/x
  3. Step 3: Cross multiply
    115,411.20x = 159,266.23 × 67,655.31
  4. Step 4: Simplify right side
    115,411.20x = 10,775,206,163.18
  5. Step 5: Solve for x
    x = 10,775,206,163.18/115,411.20
  6. Step 6: Final answer
    x = 93,363.61

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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.