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Finding the Fourth Proportional to 147,644.32, 203,746.32 and 80,576.80

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Solution

The fourth proportional to 147,644.32, 203,746.32 and 80,576.80 is: 111,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,644.32 : 203,746.32 = 80,576.80 : x
  2. Step 2: Convert to fraction form
    147,644.32/203,746.32 = 80,576.80/x
  3. Step 3: Cross multiply
    147,644.32x = 203,746.32 × 80,576.80
  4. Step 4: Simplify right side
    147,644.32x = 16,417,226,477.38
  5. Step 5: Solve for x
    x = 16,417,226,477.38/147,644.32
  6. Step 6: Final answer
    x = 111,194.43

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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.