Home / 186,945.45-280,216.73-90,678.83

Finding the Fourth Proportional to 186,945.45, 280,216.73 and 90,678.83

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Solution

The fourth proportional to 186,945.45, 280,216.73 and 90,678.83 is: 135,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,945.45 : 280,216.73 = 90,678.83 : x
  2. Step 2: Convert to fraction form
    186,945.45/280,216.73 = 90,678.83/x
  3. Step 3: Cross multiply
    186,945.45x = 280,216.73 × 90,678.83
  4. Step 4: Simplify right side
    186,945.45x = 25,409,723,368.35
  5. Step 5: Solve for x
    x = 25,409,723,368.35/186,945.45
  6. Step 6: Final answer
    x = 135,920.52

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1.5x scale

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.