Home / 109,515.70-151,133.09-63,586.11

Finding the Fourth Proportional to 109,515.70, 151,133.09 and 63,586.11

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Solution

The fourth proportional to 109,515.70, 151,133.09 and 63,586.11 is: 87,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,515.70 : 151,133.09 = 63,586.11 : x
  2. Step 2: Convert to fraction form
    109,515.70/151,133.09 = 63,586.11/x
  3. Step 3: Cross multiply
    109,515.70x = 151,133.09 × 63,586.11
  4. Step 4: Simplify right side
    109,515.70x = 9,609,965,285.38
  5. Step 5: Solve for x
    x = 9,609,965,285.38/109,515.70
  6. Step 6: Final answer
    x = 87,749.66

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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.