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Finding the Fourth Proportional to 159,103.75, 219,557.55 and 87,483.27

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Solution

The fourth proportional to 159,103.75, 219,557.55 and 87,483.27 is: 120,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,103.75 : 219,557.55 = 87,483.27 : x
  2. Step 2: Convert to fraction form
    159,103.75/219,557.55 = 87,483.27/x
  3. Step 3: Cross multiply
    159,103.75x = 219,557.55 × 87,483.27
  4. Step 4: Simplify right side
    159,103.75x = 19,207,612,427.19
  5. Step 5: Solve for x
    x = 19,207,612,427.19/159,103.75
  6. Step 6: Final answer
    x = 120,723.82

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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.