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Finding the Fourth Proportional to 147,433.56, 203,458.32 and 80,365.56

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Solution

The fourth proportional to 147,433.56, 203,458.32 and 80,365.56 is: 110,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,433.56 : 203,458.32 = 80,365.56 : x
  2. Step 2: Convert to fraction form
    147,433.56/203,458.32 = 80,365.56/x
  3. Step 3: Cross multiply
    147,433.56x = 203,458.32 × 80,365.56
  4. Step 4: Simplify right side
    147,433.56x = 16,351,041,823.46
  5. Step 5: Solve for x
    x = 16,351,041,823.46/147,433.56
  6. Step 6: Final answer
    x = 110,904.48

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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.