Home / 135,655.49-187,205.06-75,231.72

Finding the Fourth Proportional to 135,655.49, 187,205.06 and 75,231.72

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Solution

The fourth proportional to 135,655.49, 187,205.06 and 75,231.72 is: 103,820.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,655.49 : 187,205.06 = 75,231.72 : x
  2. Step 2: Convert to fraction form
    135,655.49/187,205.06 = 75,231.72/x
  3. Step 3: Cross multiply
    135,655.49x = 187,205.06 × 75,231.72
  4. Step 4: Simplify right side
    135,655.49x = 14,083,758,844.58
  5. Step 5: Solve for x
    x = 14,083,758,844.58/135,655.49
  6. Step 6: Final answer
    x = 103,820.04

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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.