Home / 106,154.13-159,231.77-31,275.20

Finding the Fourth Proportional to 106,154.13, 159,231.77 and 31,275.20

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Solution

The fourth proportional to 106,154.13, 159,231.77 and 31,275.20 is: 46,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,154.13 : 159,231.77 = 31,275.20 : x
  2. Step 2: Convert to fraction form
    106,154.13/159,231.77 = 31,275.20/x
  3. Step 3: Cross multiply
    106,154.13x = 159,231.77 × 31,275.20
  4. Step 4: Simplify right side
    106,154.13x = 4,980,005,453.10
  5. Step 5: Solve for x
    x = 4,980,005,453.10/106,154.13
  6. Step 6: Final answer
    x = 46,912.97

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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.