Home / 141,559.36-195,347.04-77,891.20

Finding the Fourth Proportional to 141,559.36, 195,347.04 and 77,891.20

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Solution

The fourth proportional to 141,559.36, 195,347.04 and 77,891.20 is: 107,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,559.36 : 195,347.04 = 77,891.20 : x
  2. Step 2: Convert to fraction form
    141,559.36/195,347.04 = 77,891.20/x
  3. Step 3: Cross multiply
    141,559.36x = 195,347.04 × 77,891.20
  4. Step 4: Simplify right side
    141,559.36x = 15,215,815,362.05
  5. Step 5: Solve for x
    x = 15,215,815,362.05/141,559.36
  6. Step 6: Final answer
    x = 107,487.17

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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.