Home / 106,385.74-159,529.56-31,479.10

Finding the Fourth Proportional to 106,385.74, 159,529.56 and 31,479.10

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Solution

The fourth proportional to 106,385.74, 159,529.56 and 31,479.10 is: 47,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,385.74 : 159,529.56 = 31,479.10 : x
  2. Step 2: Convert to fraction form
    106,385.74/159,529.56 = 31,479.10/x
  3. Step 3: Cross multiply
    106,385.74x = 159,529.56 × 31,479.10
  4. Step 4: Simplify right side
    106,385.74x = 5,021,846,972.20
  5. Step 5: Solve for x
    x = 5,021,846,972.20/106,385.74
  6. Step 6: Final answer
    x = 47,204.14

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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.