Home / 138,849.04-191,611.34-75,186.82

Finding the Fourth Proportional to 138,849.04, 191,611.34 and 75,186.82

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Solution

The fourth proportional to 138,849.04, 191,611.34 and 75,186.82 is: 103,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,849.04 : 191,611.34 = 75,186.82 : x
  2. Step 2: Convert to fraction form
    138,849.04/191,611.34 = 75,186.82/x
  3. Step 3: Cross multiply
    138,849.04x = 191,611.34 × 75,186.82
  4. Step 4: Simplify right side
    138,849.04x = 14,406,647,330.54
  5. Step 5: Solve for x
    x = 14,406,647,330.54/138,849.04
  6. Step 6: Final answer
    x = 103,757.63

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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.