Home / 185,749.12-278,499.84-67,405.06

Finding the Fourth Proportional to 185,749.12, 278,499.84 and 67,405.06

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Solution

The fourth proportional to 185,749.12, 278,499.84 and 67,405.06 is: 101,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,749.12 : 278,499.84 = 67,405.06 : x
  2. Step 2: Convert to fraction form
    185,749.12/278,499.84 = 67,405.06/x
  3. Step 3: Cross multiply
    185,749.12x = 278,499.84 × 67,405.06
  4. Step 4: Simplify right side
    185,749.12x = 18,772,298,425.19
  5. Step 5: Solve for x
    x = 18,772,298,425.19/185,749.12
  6. Step 6: Final answer
    x = 101,062.65

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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.