Home / 149,679.36-224,399.82-86,427.66

Finding the Fourth Proportional to 149,679.36, 224,399.82 and 86,427.66

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Solution

The fourth proportional to 149,679.36, 224,399.82 and 86,427.66 is: 129,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,679.36 : 224,399.82 = 86,427.66 : x
  2. Step 2: Convert to fraction form
    149,679.36/224,399.82 = 86,427.66/x
  3. Step 3: Cross multiply
    149,679.36x = 224,399.82 × 86,427.66
  4. Step 4: Simplify right side
    149,679.36x = 19,394,351,347.02
  5. Step 5: Solve for x
    x = 19,394,351,347.02/149,679.36
  6. Step 6: Final answer
    x = 129,572.65

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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.