Home / 167,663.38-251,491.40-78,867.66

Finding the Fourth Proportional to 167,663.38, 251,491.40 and 78,867.66

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Solution

The fourth proportional to 167,663.38, 251,491.40 and 78,867.66 is: 118,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,663.38 : 251,491.40 = 78,867.66 : x
  2. Step 2: Convert to fraction form
    167,663.38/251,491.40 = 78,867.66/x
  3. Step 3: Cross multiply
    167,663.38x = 251,491.40 × 78,867.66
  4. Step 4: Simplify right side
    167,663.38x = 19,834,538,228.12
  5. Step 5: Solve for x
    x = 19,834,538,228.12/167,663.38
  6. Step 6: Final answer
    x = 118,299.76

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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.