Home / 147,135.19-220,724.75-68,257.39

Finding the Fourth Proportional to 147,135.19, 220,724.75 and 68,257.39

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Solution

The fourth proportional to 147,135.19, 220,724.75 and 68,257.39 is: 102,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,135.19 : 220,724.75 = 68,257.39 : x
  2. Step 2: Convert to fraction form
    147,135.19/220,724.75 = 68,257.39/x
  3. Step 3: Cross multiply
    147,135.19x = 220,724.75 × 68,257.39
  4. Step 4: Simplify right side
    147,135.19x = 15,066,095,343.40
  5. Step 5: Solve for x
    x = 15,066,095,343.40/147,135.19
  6. Step 6: Final answer
    x = 102,396.27

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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.