Home / 113,976.31-157,309.03-75,145.95

Finding the Fourth Proportional to 113,976.31, 157,309.03 and 75,145.95

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Solution

The fourth proportional to 113,976.31, 157,309.03 and 75,145.95 is: 103,715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,976.31 : 157,309.03 = 75,145.95 : x
  2. Step 2: Convert to fraction form
    113,976.31/157,309.03 = 75,145.95/x
  3. Step 3: Cross multiply
    113,976.31x = 157,309.03 × 75,145.95
  4. Step 4: Simplify right side
    113,976.31x = 11,821,136,502.93
  5. Step 5: Solve for x
    x = 11,821,136,502.93/113,976.31
  6. Step 6: Final answer
    x = 103,715.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.