Home / 137,177.21-189,296.82-75,920.06

Finding the Fourth Proportional to 137,177.21, 189,296.82 and 75,920.06

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Solution

The fourth proportional to 137,177.21, 189,296.82 and 75,920.06 is: 104,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,177.21 : 189,296.82 = 75,920.06 : x
  2. Step 2: Convert to fraction form
    137,177.21/189,296.82 = 75,920.06/x
  3. Step 3: Cross multiply
    137,177.21x = 189,296.82 × 75,920.06
  4. Step 4: Simplify right side
    137,177.21x = 14,371,424,985.73
  5. Step 5: Solve for x
    x = 14,371,424,985.73/137,177.21
  6. Step 6: Final answer
    x = 104,765.40

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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.