Home / 106,411.42-159,509.40-68,995.18

Finding the Fourth Proportional to 106,411.42, 159,509.40 and 68,995.18

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Solution

The fourth proportional to 106,411.42, 159,509.40 and 68,995.18 is: 103,422.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,411.42 : 159,509.40 = 68,995.18 : x
  2. Step 2: Convert to fraction form
    106,411.42/159,509.40 = 68,995.18/x
  3. Step 3: Cross multiply
    106,411.42x = 159,509.40 × 68,995.18
  4. Step 4: Simplify right side
    106,411.42x = 11,005,379,764.69
  5. Step 5: Solve for x
    x = 11,005,379,764.69/106,411.42
  6. Step 6: Final answer
    x = 103,422.92

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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.