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Finding the Fourth Proportional to 158,874.62, 219,249.59 and 86,277.69

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Solution

The fourth proportional to 158,874.62, 219,249.59 and 86,277.69 is: 119,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,874.62 : 219,249.59 = 86,277.69 : x
  2. Step 2: Convert to fraction form
    158,874.62/219,249.59 = 86,277.69/x
  3. Step 3: Cross multiply
    158,874.62x = 219,249.59 × 86,277.69
  4. Step 4: Simplify right side
    158,874.62x = 18,916,347,727.26
  5. Step 5: Solve for x
    x = 18,916,347,727.26/158,874.62
  6. Step 6: Final answer
    x = 119,064.63

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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.