Home / 99,677.16-137,422.44-80,535.51

Finding the Fourth Proportional to 99,677.16, 137,422.44 and 80,535.51

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Solution

The fourth proportional to 99,677.16, 137,422.44 and 80,535.51 is: 111,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,677.16 : 137,422.44 = 80,535.51 : x
  2. Step 2: Convert to fraction form
    99,677.16/137,422.44 = 80,535.51/x
  3. Step 3: Cross multiply
    99,677.16x = 137,422.44 × 80,535.51
  4. Step 4: Simplify right side
    99,677.16x = 11,067,386,290.84
  5. Step 5: Solve for x
    x = 11,067,386,290.84/99,677.16
  6. Step 6: Final answer
    x = 111,032.32

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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.