Home / 186,945.95-280,217.47-90,679.32

Finding the Fourth Proportional to 186,945.95, 280,217.47 and 90,679.32

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Solution

The fourth proportional to 186,945.95, 280,217.47 and 90,679.32 is: 135,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,945.95 : 280,217.47 = 90,679.32 : x
  2. Step 2: Convert to fraction form
    186,945.95/280,217.47 = 90,679.32/x
  3. Step 3: Cross multiply
    186,945.95x = 280,217.47 × 90,679.32
  4. Step 4: Simplify right side
    186,945.95x = 25,409,929,631.72
  5. Step 5: Solve for x
    x = 25,409,929,631.72/186,945.95
  6. Step 6: Final answer
    x = 135,921.26

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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.