Home / 119,137.91-164,412.05-65,427.75

Finding the Fourth Proportional to 119,137.91, 164,412.05 and 65,427.75

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Solution

The fourth proportional to 119,137.91, 164,412.05 and 65,427.75 is: 90,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,137.91 : 164,412.05 = 65,427.75 : x
  2. Step 2: Convert to fraction form
    119,137.91/164,412.05 = 65,427.75/x
  3. Step 3: Cross multiply
    119,137.91x = 164,412.05 × 65,427.75
  4. Step 4: Simplify right side
    119,137.91x = 10,757,110,177.25
  5. Step 5: Solve for x
    x = 10,757,110,177.25/119,137.91
  6. Step 6: Final answer
    x = 90,291.25

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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.