Home / 159,220.92-219,725.23-87,605.55

Finding the Fourth Proportional to 159,220.92, 219,725.23 and 87,605.55

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Solution

The fourth proportional to 159,220.92, 219,725.23 and 87,605.55 is: 120,895.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,220.92 : 219,725.23 = 87,605.55 : x
  2. Step 2: Convert to fraction form
    159,220.92/219,725.23 = 87,605.55/x
  3. Step 3: Cross multiply
    159,220.92x = 219,725.23 × 87,605.55
  4. Step 4: Simplify right side
    159,220.92x = 19,249,149,814.66
  5. Step 5: Solve for x
    x = 19,249,149,814.66/159,220.92
  6. Step 6: Final answer
    x = 120,895.86

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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.