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Finding the Fourth Proportional to 147,161.70, 220,873.77 and 68,320.35

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Solution

The fourth proportional to 147,161.70, 220,873.77 and 68,320.35 is: 102,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,161.70 : 220,873.77 = 68,320.35 : x
  2. Step 2: Convert to fraction form
    147,161.70/220,873.77 = 68,320.35/x
  3. Step 3: Cross multiply
    147,161.70x = 220,873.77 × 68,320.35
  4. Step 4: Simplify right side
    147,161.70x = 15,090,173,272.22
  5. Step 5: Solve for x
    x = 15,090,173,272.22/147,161.70
  6. Step 6: Final answer
    x = 102,541.44

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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.