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Finding the Fourth Proportional to 159,168.46, 219,647.84 and 87,548.46

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Solution

The fourth proportional to 159,168.46, 219,647.84 and 87,548.46 is: 120,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,168.46 : 219,647.84 = 87,548.46 : x
  2. Step 2: Convert to fraction form
    159,168.46/219,647.84 = 87,548.46/x
  3. Step 3: Cross multiply
    159,168.46x = 219,647.84 × 87,548.46
  4. Step 4: Simplify right side
    159,168.46x = 19,229,830,134.33
  5. Step 5: Solve for x
    x = 19,229,830,134.33/159,168.46
  6. Step 6: Final answer
    x = 120,814.33

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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.