Home / 136,422.52-188,238.09-75,991.66

Finding the Fourth Proportional to 136,422.52, 188,238.09 and 75,991.66

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Solution

The fourth proportional to 136,422.52, 188,238.09 and 75,991.66 is: 104,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,422.52 : 188,238.09 = 75,991.66 : x
  2. Step 2: Convert to fraction form
    136,422.52/188,238.09 = 75,991.66/x
  3. Step 3: Cross multiply
    136,422.52x = 188,238.09 × 75,991.66
  4. Step 4: Simplify right side
    136,422.52x = 14,304,524,038.46
  5. Step 5: Solve for x
    x = 14,304,524,038.46/136,422.52
  6. Step 6: Final answer
    x = 104,854.57

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1.5x scale

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.