Home / 106,295.40-159,460.29-31,423.05

Finding the Fourth Proportional to 106,295.40, 159,460.29 and 31,423.05

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Solution

The fourth proportional to 106,295.40, 159,460.29 and 31,423.05 is: 47,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,295.40 : 159,460.29 = 31,423.05 : x
  2. Step 2: Convert to fraction form
    106,295.40/159,460.29 = 31,423.05/x
  3. Step 3: Cross multiply
    106,295.40x = 159,460.29 × 31,423.05
  4. Step 4: Simplify right side
    106,295.40x = 5,010,728,665.68
  5. Step 5: Solve for x
    x = 5,010,728,665.68/106,295.40
  6. Step 6: Final answer
    x = 47,139.66

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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.