Home / 159,778.09-220,493.59-88,158.11

Finding the Fourth Proportional to 159,778.09, 220,493.59 and 88,158.11

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Solution

The fourth proportional to 159,778.09, 220,493.59 and 88,158.11 is: 121,658.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,778.09 : 220,493.59 = 88,158.11 : x
  2. Step 2: Convert to fraction form
    159,778.09/220,493.59 = 88,158.11/x
  3. Step 3: Cross multiply
    159,778.09x = 220,493.59 × 88,158.11
  4. Step 4: Simplify right side
    159,778.09x = 19,438,296,838.65
  5. Step 5: Solve for x
    x = 19,438,296,838.65/159,778.09
  6. Step 6: Final answer
    x = 121,658.09

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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.