Home / 115,559.40-173,177.10-91,907.40

Finding the Fourth Proportional to 115,559.40, 173,177.10 and 91,907.40

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Solution

The fourth proportional to 115,559.40, 173,177.10 and 91,907.40 is: 137,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,559.40 : 173,177.10 = 91,907.40 : x
  2. Step 2: Convert to fraction form
    115,559.40/173,177.10 = 91,907.40/x
  3. Step 3: Cross multiply
    115,559.40x = 173,177.10 × 91,907.40
  4. Step 4: Simplify right side
    115,559.40x = 15,916,257,000.54
  5. Step 5: Solve for x
    x = 15,916,257,000.54/115,559.40
  6. Step 6: Final answer
    x = 137,732.26

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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.