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Finding the Fourth Proportional to 159,094.93, 219,551.83 and 87,479.57

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Solution

The fourth proportional to 159,094.93, 219,551.83 and 87,479.57 is: 120,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,094.93 : 219,551.83 = 87,479.57 : x
  2. Step 2: Convert to fraction form
    159,094.93/219,551.83 = 87,479.57/x
  3. Step 3: Cross multiply
    159,094.93x = 219,551.83 × 87,479.57
  4. Step 4: Simplify right side
    159,094.93x = 19,206,298,583.35
  5. Step 5: Solve for x
    x = 19,206,298,583.35/159,094.93
  6. Step 6: Final answer
    x = 120,722.25

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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.