Home / 115,576.40-173,623.80-80,584.40

Finding the Fourth Proportional to 115,576.40, 173,623.80 and 80,584.40

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Solution

The fourth proportional to 115,576.40, 173,623.80 and 80,584.40 is: 121,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,576.40 : 173,623.80 = 80,584.40 : x
  2. Step 2: Convert to fraction form
    115,576.40/173,623.80 = 80,584.40/x
  3. Step 3: Cross multiply
    115,576.40x = 173,623.80 × 80,584.40
  4. Step 4: Simplify right side
    115,576.40x = 13,991,369,748.72
  5. Step 5: Solve for x
    x = 13,991,369,748.72/115,576.40
  6. Step 6: Final answer
    x = 121,057.32

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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.