Home / 141,406.18-195,135.51-77,743.48

Finding the Fourth Proportional to 141,406.18, 195,135.51 and 77,743.48

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Solution

The fourth proportional to 141,406.18, 195,135.51 and 77,743.48 is: 107,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.18 : 195,135.51 = 77,743.48 : x
  2. Step 2: Convert to fraction form
    141,406.18/195,135.51 = 77,743.48/x
  3. Step 3: Cross multiply
    141,406.18x = 195,135.51 × 77,743.48
  4. Step 4: Simplify right side
    141,406.18x = 15,170,513,618.97
  5. Step 5: Solve for x
    x = 15,170,513,618.97/141,406.18
  6. Step 6: Final answer
    x = 107,283.24

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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.