Home / 155,117.62-214,082.37-87,134.61

Finding the Fourth Proportional to 155,117.62, 214,082.37 and 87,134.61

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Solution

The fourth proportional to 155,117.62, 214,082.37 and 87,134.61 is: 120,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,117.62 : 214,082.37 = 87,134.61 : x
  2. Step 2: Convert to fraction form
    155,117.62/214,082.37 = 87,134.61/x
  3. Step 3: Cross multiply
    155,117.62x = 214,082.37 × 87,134.61
  4. Step 4: Simplify right side
    155,117.62x = 18,653,983,817.83
  5. Step 5: Solve for x
    x = 18,653,983,817.83/155,117.62
  6. Step 6: Final answer
    x = 120,257.03

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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.