Home / 136,290.77-188,081.27-75,860.12

Finding the Fourth Proportional to 136,290.77, 188,081.27 and 75,860.12

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Solution

The fourth proportional to 136,290.77, 188,081.27 and 75,860.12 is: 104,686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,290.77 : 188,081.27 = 75,860.12 : x
  2. Step 2: Convert to fraction form
    136,290.77/188,081.27 = 75,860.12/x
  3. Step 3: Cross multiply
    136,290.77x = 188,081.27 × 75,860.12
  4. Step 4: Simplify right side
    136,290.77x = 14,267,867,431.40
  5. Step 5: Solve for x
    x = 14,267,867,431.40/136,290.77
  6. Step 6: Final answer
    x = 104,686.97

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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.