Home / 144,335.26-199,138.91-100,726.65

Finding the Fourth Proportional to 144,335.26, 199,138.91 and 100,726.65

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Solution

The fourth proportional to 144,335.26, 199,138.91 and 100,726.65 is: 138,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,335.26 : 199,138.91 = 100,726.65 : x
  2. Step 2: Convert to fraction form
    144,335.26/199,138.91 = 100,726.65/x
  3. Step 3: Cross multiply
    144,335.26x = 199,138.91 × 100,726.65
  4. Step 4: Simplify right side
    144,335.26x = 20,058,595,282.71
  5. Step 5: Solve for x
    x = 20,058,595,282.71/144,335.26
  6. Step 6: Final answer
    x = 138,972.25

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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.