Home / 141,483.78-195,248.07-77,825.61

Finding the Fourth Proportional to 141,483.78, 195,248.07 and 77,825.61

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Solution

The fourth proportional to 141,483.78, 195,248.07 and 77,825.61 is: 107,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,483.78 : 195,248.07 = 77,825.61 : x
  2. Step 2: Convert to fraction form
    141,483.78/195,248.07 = 77,825.61/x
  3. Step 3: Cross multiply
    141,483.78x = 195,248.07 × 77,825.61
  4. Step 4: Simplify right side
    141,483.78x = 15,195,300,149.07
  5. Step 5: Solve for x
    x = 15,195,300,149.07/141,483.78
  6. Step 6: Final answer
    x = 107,399.59

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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.