Home / 136,145.41-187,866.28-75,706.29

Finding the Fourth Proportional to 136,145.41, 187,866.28 and 75,706.29

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Solution

The fourth proportional to 136,145.41, 187,866.28 and 75,706.29 is: 104,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,145.41 : 187,866.28 = 75,706.29 : x
  2. Step 2: Convert to fraction form
    136,145.41/187,866.28 = 75,706.29/x
  3. Step 3: Cross multiply
    136,145.41x = 187,866.28 × 75,706.29
  4. Step 4: Simplify right side
    136,145.41x = 14,222,659,169.53
  5. Step 5: Solve for x
    x = 14,222,659,169.53/136,145.41
  6. Step 6: Final answer
    x = 104,466.68

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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.