Home / 126,338.85-189,506.64-36,383.76

Finding the Fourth Proportional to 126,338.85, 189,506.64 and 36,383.76

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Solution

The fourth proportional to 126,338.85, 189,506.64 and 36,383.76 is: 54,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,338.85 : 189,506.64 = 36,383.76 : x
  2. Step 2: Convert to fraction form
    126,338.85/189,506.64 = 36,383.76/x
  3. Step 3: Cross multiply
    126,338.85x = 189,506.64 × 36,383.76
  4. Step 4: Simplify right side
    126,338.85x = 6,894,964,108.17
  5. Step 5: Solve for x
    x = 6,894,964,108.17/126,338.85
  6. Step 6: Final answer
    x = 54,575.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.