Home / 106,411.67-159,509.77-68,995.43

Finding the Fourth Proportional to 106,411.67, 159,509.77 and 68,995.43

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Solution

The fourth proportional to 106,411.67, 159,509.77 and 68,995.43 is: 103,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,411.67 : 159,509.77 = 68,995.43 : x
  2. Step 2: Convert to fraction form
    106,411.67/159,509.77 = 68,995.43/x
  3. Step 3: Cross multiply
    106,411.67x = 159,509.77 × 68,995.43
  4. Step 4: Simplify right side
    106,411.67x = 11,005,445,170.35
  5. Step 5: Solve for x
    x = 11,005,445,170.35/106,411.67
  6. Step 6: Final answer
    x = 103,423.29

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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.