Home / 186,944.95-280,215.97-90,678.32

Finding the Fourth Proportional to 186,944.95, 280,215.97 and 90,678.32

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Solution

The fourth proportional to 186,944.95, 280,215.97 and 90,678.32 is: 135,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,944.95 : 280,215.97 = 90,678.32 : x
  2. Step 2: Convert to fraction form
    186,944.95/280,215.97 = 90,678.32/x
  3. Step 3: Cross multiply
    186,944.95x = 280,215.97 × 90,678.32
  4. Step 4: Simplify right side
    186,944.95x = 25,409,513,396.77
  5. Step 5: Solve for x
    x = 25,409,513,396.77/186,944.95
  6. Step 6: Final answer
    x = 135,919.76

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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.