Home / 158,717.70-219,038.40-87,097.14

Finding the Fourth Proportional to 158,717.70, 219,038.40 and 87,097.14

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Solution

The fourth proportional to 158,717.70, 219,038.40 and 87,097.14 is: 120,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,717.70 : 219,038.40 = 87,097.14 : x
  2. Step 2: Convert to fraction form
    158,717.70/219,038.40 = 87,097.14/x
  3. Step 3: Cross multiply
    158,717.70x = 219,038.40 × 87,097.14
  4. Step 4: Simplify right side
    158,717.70x = 19,077,618,190.18
  5. Step 5: Solve for x
    x = 19,077,618,190.18/158,717.70
  6. Step 6: Final answer
    x = 120,198.43

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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.