Home / 138,944.39-191,742.03-75,282.05

Finding the Fourth Proportional to 138,944.39, 191,742.03 and 75,282.05

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Solution

The fourth proportional to 138,944.39, 191,742.03 and 75,282.05 is: 103,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,944.39 : 191,742.03 = 75,282.05 : x
  2. Step 2: Convert to fraction form
    138,944.39/191,742.03 = 75,282.05/x
  3. Step 3: Cross multiply
    138,944.39x = 191,742.03 × 75,282.05
  4. Step 4: Simplify right side
    138,944.39x = 14,434,733,089.56
  5. Step 5: Solve for x
    x = 14,434,733,089.56/138,944.39
  6. Step 6: Final answer
    x = 103,888.56

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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.