Home / 220,112.70-330,278.40-86,997.30

Finding the Fourth Proportional to 220,112.70, 330,278.40 and 86,997.30

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Solution

The fourth proportional to 220,112.70, 330,278.40 and 86,997.30 is: 130,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,112.70 : 330,278.40 = 86,997.30 : x
  2. Step 2: Convert to fraction form
    220,112.70/330,278.40 = 86,997.30/x
  3. Step 3: Cross multiply
    220,112.70x = 330,278.40 × 86,997.30
  4. Step 4: Simplify right side
    220,112.70x = 28,733,329,048.32
  5. Step 5: Solve for x
    x = 28,733,329,048.32/220,112.70
  6. Step 6: Final answer
    x = 130,539.17

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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.