Home / 131,967.36-197,717.76-87,488.64

Finding the Fourth Proportional to 131,967.36, 197,717.76 and 87,488.64

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Solution

The fourth proportional to 131,967.36, 197,717.76 and 87,488.64 is: 131,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,967.36 : 197,717.76 = 87,488.64 : x
  2. Step 2: Convert to fraction form
    131,967.36/197,717.76 = 87,488.64/x
  3. Step 3: Cross multiply
    131,967.36x = 197,717.76 × 87,488.64
  4. Step 4: Simplify right side
    131,967.36x = 17,298,057,926.25
  5. Step 5: Solve for x
    x = 17,298,057,926.25/131,967.36
  6. Step 6: Final answer
    x = 131,078.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.