Home / 127,925.20-191,887.80-68,788.72

Finding the Fourth Proportional to 127,925.20, 191,887.80 and 68,788.72

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Solution

The fourth proportional to 127,925.20, 191,887.80 and 68,788.72 is: 103,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,925.20 : 191,887.80 = 68,788.72 : x
  2. Step 2: Convert to fraction form
    127,925.20/191,887.80 = 68,788.72/x
  3. Step 3: Cross multiply
    127,925.20x = 191,887.80 × 68,788.72
  4. Step 4: Simplify right side
    127,925.20x = 13,199,716,145.62
  5. Step 5: Solve for x
    x = 13,199,716,145.62/127,925.20
  6. Step 6: Final answer
    x = 103,183.08

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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.