Home / 147,385.44-203,397.12-81,976.32

Finding the Fourth Proportional to 147,385.44, 203,397.12 and 81,976.32

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Solution

The fourth proportional to 147,385.44, 203,397.12 and 81,976.32 is: 113,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,385.44 : 203,397.12 = 81,976.32 : x
  2. Step 2: Convert to fraction form
    147,385.44/203,397.12 = 81,976.32/x
  3. Step 3: Cross multiply
    147,385.44x = 203,397.12 × 81,976.32
  4. Step 4: Simplify right side
    147,385.44x = 16,673,747,396.20
  5. Step 5: Solve for x
    x = 16,673,747,396.20/147,385.44
  6. Step 6: Final answer
    x = 113,130.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.