Home / 136,133.46-187,862.09-75,701.79

Finding the Fourth Proportional to 136,133.46, 187,862.09 and 75,701.79

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Solution

The fourth proportional to 136,133.46, 187,862.09 and 75,701.79 is: 104,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,133.46 : 187,862.09 = 75,701.79 : x
  2. Step 2: Convert to fraction form
    136,133.46/187,862.09 = 75,701.79/x
  3. Step 3: Cross multiply
    136,133.46x = 187,862.09 × 75,701.79
  4. Step 4: Simplify right side
    136,133.46x = 14,221,496,107.63
  5. Step 5: Solve for x
    x = 14,221,496,107.63/136,133.46
  6. Step 6: Final answer
    x = 104,467.31

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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.