Home / 138,744.39-191,467.76-75,082.17

Finding the Fourth Proportional to 138,744.39, 191,467.76 and 75,082.17

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Solution

The fourth proportional to 138,744.39, 191,467.76 and 75,082.17 is: 103,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,744.39 : 191,467.76 = 75,082.17 : x
  2. Step 2: Convert to fraction form
    138,744.39/191,467.76 = 75,082.17/x
  3. Step 3: Cross multiply
    138,744.39x = 191,467.76 × 75,082.17
  4. Step 4: Simplify right side
    138,744.39x = 14,375,814,905.84
  5. Step 5: Solve for x
    x = 14,375,814,905.84/138,744.39
  6. Step 6: Final answer
    x = 103,613.67

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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.