Home / 135,530.15-187,037.56-75,100.65

Finding the Fourth Proportional to 135,530.15, 187,037.56 and 75,100.65

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Solution

The fourth proportional to 135,530.15, 187,037.56 and 75,100.65 is: 103,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,530.15 : 187,037.56 = 75,100.65 : x
  2. Step 2: Convert to fraction form
    135,530.15/187,037.56 = 75,100.65/x
  3. Step 3: Cross multiply
    135,530.15x = 187,037.56 × 75,100.65
  4. Step 4: Simplify right side
    135,530.15x = 14,046,642,330.41
  5. Step 5: Solve for x
    x = 14,046,642,330.41/135,530.15
  6. Step 6: Final answer
    x = 103,642.20

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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.