Home / 141,643.62-195,467.64-77,981.46

Finding the Fourth Proportional to 141,643.62, 195,467.64 and 77,981.46

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Solution

The fourth proportional to 141,643.62, 195,467.64 and 77,981.46 is: 107,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,643.62 : 195,467.64 = 77,981.46 : x
  2. Step 2: Convert to fraction form
    141,643.62/195,467.64 = 77,981.46/x
  3. Step 3: Cross multiply
    141,643.62x = 195,467.64 × 77,981.46
  4. Step 4: Simplify right side
    141,643.62x = 15,242,851,949.95
  5. Step 5: Solve for x
    x = 15,242,851,949.95/141,643.62
  6. Step 6: Final answer
    x = 107,614.11

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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.