Home / 141,643.49-195,467.38-77,981.23

Finding the Fourth Proportional to 141,643.49, 195,467.38 and 77,981.23

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Solution

The fourth proportional to 141,643.49, 195,467.38 and 77,981.23 is: 107,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,643.49 : 195,467.38 = 77,981.23 : x
  2. Step 2: Convert to fraction form
    141,643.49/195,467.38 = 77,981.23/x
  3. Step 3: Cross multiply
    141,643.49x = 195,467.38 × 77,981.23
  4. Step 4: Simplify right side
    141,643.49x = 15,242,786,766.66
  5. Step 5: Solve for x
    x = 15,242,786,766.66/141,643.49
  6. Step 6: Final answer
    x = 107,613.75

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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.