Home / 192,867.08-289,346.81-80,484.78

Finding the Fourth Proportional to 192,867.08, 289,346.81 and 80,484.78

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Solution

The fourth proportional to 192,867.08, 289,346.81 and 80,484.78 is: 120,746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,867.08 : 289,346.81 = 80,484.78 : x
  2. Step 2: Convert to fraction form
    192,867.08/289,346.81 = 80,484.78/x
  3. Step 3: Cross multiply
    192,867.08x = 289,346.81 × 80,484.78
  4. Step 4: Simplify right side
    192,867.08x = 23,288,013,944.13
  5. Step 5: Solve for x
    x = 23,288,013,944.13/192,867.08
  6. Step 6: Final answer
    x = 120,746.45

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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.