Home / 147,118.40-220,504.80-68,065.64

Finding the Fourth Proportional to 147,118.40, 220,504.80 and 68,065.64

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Solution

The fourth proportional to 147,118.40, 220,504.80 and 68,065.64 is: 102,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,118.40 : 220,504.80 = 68,065.64 : x
  2. Step 2: Convert to fraction form
    147,118.40/220,504.80 = 68,065.64/x
  3. Step 3: Cross multiply
    147,118.40x = 220,504.80 × 68,065.64
  4. Step 4: Simplify right side
    147,118.40x = 15,008,800,335.07
  5. Step 5: Solve for x
    x = 15,008,800,335.07/147,118.40
  6. Step 6: Final answer
    x = 102,018.51

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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.