Home / 170,213.28-255,150.96-86,921.12

Finding the Fourth Proportional to 170,213.28, 255,150.96 and 86,921.12

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Solution

The fourth proportional to 170,213.28, 255,150.96 and 86,921.12 is: 130,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,213.28 : 255,150.96 = 86,921.12 : x
  2. Step 2: Convert to fraction form
    170,213.28/255,150.96 = 86,921.12/x
  3. Step 3: Cross multiply
    170,213.28x = 255,150.96 × 86,921.12
  4. Step 4: Simplify right side
    170,213.28x = 22,178,007,212.28
  5. Step 5: Solve for x
    x = 22,178,007,212.28/170,213.28
  6. Step 6: Final answer
    x = 130,295.40

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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.