Home / 115,733.01-173,420.91-78,145.77

Finding the Fourth Proportional to 115,733.01, 173,420.91 and 78,145.77

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Solution

The fourth proportional to 115,733.01, 173,420.91 and 78,145.77 is: 117,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,733.01 : 173,420.91 = 78,145.77 : x
  2. Step 2: Convert to fraction form
    115,733.01/173,420.91 = 78,145.77/x
  3. Step 3: Cross multiply
    115,733.01x = 173,420.91 × 78,145.77
  4. Step 4: Simplify right side
    115,733.01x = 13,552,110,546.05
  5. Step 5: Solve for x
    x = 13,552,110,546.05/115,733.01
  6. Step 6: Final answer
    x = 117,098.06

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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.