Home / 106,505.07-146,972.94-66,209.59

Finding the Fourth Proportional to 106,505.07, 146,972.94 and 66,209.59

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Solution

The fourth proportional to 106,505.07, 146,972.94 and 66,209.59 is: 91,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,505.07 : 146,972.94 = 66,209.59 : x
  2. Step 2: Convert to fraction form
    106,505.07/146,972.94 = 66,209.59/x
  3. Step 3: Cross multiply
    106,505.07x = 146,972.94 × 66,209.59
  4. Step 4: Simplify right side
    106,505.07x = 9,731,018,098.49
  5. Step 5: Solve for x
    x = 9,731,018,098.49/106,505.07
  6. Step 6: Final answer
    x = 91,366.71

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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.