Home / 159,070.55-219,517.49-87,451.79

Finding the Fourth Proportional to 159,070.55, 219,517.49 and 87,451.79

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Solution

The fourth proportional to 159,070.55, 219,517.49 and 87,451.79 is: 120,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,070.55 : 219,517.49 = 87,451.79 : x
  2. Step 2: Convert to fraction form
    159,070.55/219,517.49 = 87,451.79/x
  3. Step 3: Cross multiply
    159,070.55x = 219,517.49 × 87,451.79
  4. Step 4: Simplify right side
    159,070.55x = 19,197,196,557.85
  5. Step 5: Solve for x
    x = 19,197,196,557.85/159,070.55
  6. Step 6: Final answer
    x = 120,683.54

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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.