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Finding the Fourth Proportional to 159,097.43, 219,555.28 and 87,482.07

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Solution

The fourth proportional to 159,097.43, 219,555.28 and 87,482.07 is: 120,725.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,097.43 : 219,555.28 = 87,482.07 : x
  2. Step 2: Convert to fraction form
    159,097.43/219,555.28 = 87,482.07/x
  3. Step 3: Cross multiply
    159,097.43x = 219,555.28 × 87,482.07
  4. Step 4: Simplify right side
    159,097.43x = 19,207,150,373.83
  5. Step 5: Solve for x
    x = 19,207,150,373.83/159,097.43
  6. Step 6: Final answer
    x = 120,725.71

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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.