Home / 147,645.32-203,747.70-80,577.80

Finding the Fourth Proportional to 147,645.32, 203,747.70 and 80,577.80

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Solution

The fourth proportional to 147,645.32, 203,747.70 and 80,577.80 is: 111,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,645.32 : 203,747.70 = 80,577.80 : x
  2. Step 2: Convert to fraction form
    147,645.32/203,747.70 = 80,577.80/x
  3. Step 3: Cross multiply
    147,645.32x = 203,747.70 × 80,577.80
  4. Step 4: Simplify right side
    147,645.32x = 16,417,541,421.06
  5. Step 5: Solve for x
    x = 16,417,541,421.06/147,645.32
  6. Step 6: Final answer
    x = 111,195.81

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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.