Home / 106,220.06-159,356.82-87,276.42

Finding the Fourth Proportional to 106,220.06, 159,356.82 and 87,276.42

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Solution

The fourth proportional to 106,220.06, 159,356.82 and 87,276.42 is: 130,936.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,220.06 : 159,356.82 = 87,276.42 : x
  2. Step 2: Convert to fraction form
    106,220.06/159,356.82 = 87,276.42/x
  3. Step 3: Cross multiply
    106,220.06x = 159,356.82 × 87,276.42
  4. Step 4: Simplify right side
    106,220.06x = 13,908,092,752.18
  5. Step 5: Solve for x
    x = 13,908,092,752.18/106,220.06
  6. Step 6: Final answer
    x = 130,936.59

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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.