Home / 158,717.82-219,033.93-87,097.21

Finding the Fourth Proportional to 158,717.82, 219,033.93 and 87,097.21

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Solution

The fourth proportional to 158,717.82, 219,033.93 and 87,097.21 is: 120,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,717.82 : 219,033.93 = 87,097.21 : x
  2. Step 2: Convert to fraction form
    158,717.82/219,033.93 = 87,097.21/x
  3. Step 3: Cross multiply
    158,717.82x = 219,033.93 × 87,097.21
  4. Step 4: Simplify right side
    158,717.82x = 19,077,244,198.34
  5. Step 5: Solve for x
    x = 19,077,244,198.34/158,717.82
  6. Step 6: Final answer
    x = 120,195.98

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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.