Home / 135,649.11-187,186.65-75,217.51

Finding the Fourth Proportional to 135,649.11, 187,186.65 and 75,217.51

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Solution

The fourth proportional to 135,649.11, 187,186.65 and 75,217.51 is: 103,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,649.11 : 187,186.65 = 75,217.51 : x
  2. Step 2: Convert to fraction form
    135,649.11/187,186.65 = 75,217.51/x
  3. Step 3: Cross multiply
    135,649.11x = 187,186.65 × 75,217.51
  4. Step 4: Simplify right side
    135,649.11x = 14,079,713,670.16
  5. Step 5: Solve for x
    x = 14,079,713,670.16/135,649.11
  6. Step 6: Final answer
    x = 103,795.10

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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.