Home / 137,162.20-189,301.26-76,736.20

Finding the Fourth Proportional to 137,162.20, 189,301.26 and 76,736.20

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Solution

The fourth proportional to 137,162.20, 189,301.26 and 76,736.20 is: 105,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,162.20 : 189,301.26 = 76,736.20 : x
  2. Step 2: Convert to fraction form
    137,162.20/189,301.26 = 76,736.20/x
  3. Step 3: Cross multiply
    137,162.20x = 189,301.26 × 76,736.20
  4. Step 4: Simplify right side
    137,162.20x = 14,526,259,347.61
  5. Step 5: Solve for x
    x = 14,526,259,347.61/137,162.20
  6. Step 6: Final answer
    x = 105,905.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.