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Finding the Fourth Proportional to 147,775.36, 203,929.68 and 80,707.36

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Solution

The fourth proportional to 147,775.36, 203,929.68 and 80,707.36 is: 111,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,775.36 : 203,929.68 = 80,707.36 : x
  2. Step 2: Convert to fraction form
    147,775.36/203,929.68 = 80,707.36/x
  3. Step 3: Cross multiply
    147,775.36x = 203,929.68 × 80,707.36
  4. Step 4: Simplify right side
    147,775.36x = 16,458,626,098.44
  5. Step 5: Solve for x
    x = 16,458,626,098.44/147,775.36
  6. Step 6: Final answer
    x = 111,375.98

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1.5x scale

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.