Home / 163,320.28-225,388.31-90,728.67

Finding the Fourth Proportional to 163,320.28, 225,388.31 and 90,728.67

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Solution

The fourth proportional to 163,320.28, 225,388.31 and 90,728.67 is: 125,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,320.28 : 225,388.31 = 90,728.67 : x
  2. Step 2: Convert to fraction form
    163,320.28/225,388.31 = 90,728.67/x
  3. Step 3: Cross multiply
    163,320.28x = 225,388.31 × 90,728.67
  4. Step 4: Simplify right side
    163,320.28x = 20,449,180,723.60
  5. Step 5: Solve for x
    x = 20,449,180,723.60/163,320.28
  6. Step 6: Final answer
    x = 125,209.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.