Home / 115,777.72-173,487.24-80,308.00

Finding the Fourth Proportional to 115,777.72, 173,487.24 and 80,308.00

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Solution

The fourth proportional to 115,777.72, 173,487.24 and 80,308.00 is: 120,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,777.72 : 173,487.24 = 80,308.00 : x
  2. Step 2: Convert to fraction form
    115,777.72/173,487.24 = 80,308.00/x
  3. Step 3: Cross multiply
    115,777.72x = 173,487.24 × 80,308.00
  4. Step 4: Simplify right side
    115,777.72x = 13,932,413,486.78
  5. Step 5: Solve for x
    x = 13,932,413,486.78/115,777.72
  6. Step 6: Final answer
    x = 120,337.60

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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.