Home / 143,512.54-215,081.62-89,454.89

Finding the Fourth Proportional to 143,512.54, 215,081.62 and 89,454.89

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Solution

The fourth proportional to 143,512.54, 215,081.62 and 89,454.89 is: 134,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,512.54 : 215,081.62 = 89,454.89 : x
  2. Step 2: Convert to fraction form
    143,512.54/215,081.62 = 89,454.89/x
  3. Step 3: Cross multiply
    143,512.54x = 215,081.62 × 89,454.89
  4. Step 4: Simplify right side
    143,512.54x = 19,240,102,658.12
  5. Step 5: Solve for x
    x = 19,240,102,658.12/143,512.54
  6. Step 6: Final answer
    x = 134,065.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.