Home / 180,507.28-270,767.20-85,688.62

Finding the Fourth Proportional to 180,507.28, 270,767.20 and 85,688.62

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Solution

The fourth proportional to 180,507.28, 270,767.20 and 85,688.62 is: 128,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,507.28 : 270,767.20 = 85,688.62 : x
  2. Step 2: Convert to fraction form
    180,507.28/270,767.20 = 85,688.62/x
  3. Step 3: Cross multiply
    180,507.28x = 270,767.20 × 85,688.62
  4. Step 4: Simplify right side
    180,507.28x = 23,201,667,709.26
  5. Step 5: Solve for x
    x = 23,201,667,709.26/180,507.28
  6. Step 6: Final answer
    x = 128,535.91

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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.