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Finding the Fourth Proportional to 159,115.93, 219,585.62 and 87,501.40

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Solution

The fourth proportional to 159,115.93, 219,585.62 and 87,501.40 is: 120,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,115.93 : 219,585.62 = 87,501.40 : x
  2. Step 2: Convert to fraction form
    159,115.93/219,585.62 = 87,501.40/x
  3. Step 3: Cross multiply
    159,115.93x = 219,585.62 × 87,501.40
  4. Step 4: Simplify right side
    159,115.93x = 19,214,049,169.87
  5. Step 5: Solve for x
    x = 19,214,049,169.87/159,115.93
  6. Step 6: Final answer
    x = 120,755.03

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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.