Home / 136,074.60-187,786.08-75,642.93

Finding the Fourth Proportional to 136,074.60, 187,786.08 and 75,642.93

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Solution

The fourth proportional to 136,074.60, 187,786.08 and 75,642.93 is: 104,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,074.60 : 187,786.08 = 75,642.93 : x
  2. Step 2: Convert to fraction form
    136,074.60/187,786.08 = 75,642.93/x
  3. Step 3: Cross multiply
    136,074.60x = 187,786.08 × 75,642.93
  4. Step 4: Simplify right side
    136,074.60x = 14,204,689,304.41
  5. Step 5: Solve for x
    x = 14,204,689,304.41/136,074.60
  6. Step 6: Final answer
    x = 104,388.98

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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.