Home / 112,174.28-154,748.82-71,868.68

Finding the Fourth Proportional to 112,174.28, 154,748.82 and 71,868.68

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Solution

The fourth proportional to 112,174.28, 154,748.82 and 71,868.68 is: 99,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,174.28 : 154,748.82 = 71,868.68 : x
  2. Step 2: Convert to fraction form
    112,174.28/154,748.82 = 71,868.68/x
  3. Step 3: Cross multiply
    112,174.28x = 154,748.82 × 71,868.68
  4. Step 4: Simplify right side
    112,174.28x = 11,121,593,424.96
  5. Step 5: Solve for x
    x = 11,121,593,424.96/112,174.28
  6. Step 6: Final answer
    x = 99,145.66

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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.