Home / 137,182.83-189,319.67-76,749.87

Finding the Fourth Proportional to 137,182.83, 189,319.67 and 76,749.87

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Solution

The fourth proportional to 137,182.83, 189,319.67 and 76,749.87 is: 105,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,182.83 : 189,319.67 = 76,749.87 : x
  2. Step 2: Convert to fraction form
    137,182.83/189,319.67 = 76,749.87/x
  3. Step 3: Cross multiply
    137,182.83x = 189,319.67 × 76,749.87
  4. Step 4: Simplify right side
    137,182.83x = 14,530,259,677.19
  5. Step 5: Solve for x
    x = 14,530,259,677.19/137,182.83
  6. Step 6: Final answer
    x = 105,918.94

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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.