Home / 221,119.64-305,153.34-125,642.52

Finding the Fourth Proportional to 221,119.64, 305,153.34 and 125,642.52

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Solution

The fourth proportional to 221,119.64, 305,153.34 and 125,642.52 is: 173,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,119.64 : 305,153.34 = 125,642.52 : x
  2. Step 2: Convert to fraction form
    221,119.64/305,153.34 = 125,642.52/x
  3. Step 3: Cross multiply
    221,119.64x = 305,153.34 × 125,642.52
  4. Step 4: Simplify right side
    221,119.64x = 38,340,234,624.02
  5. Step 5: Solve for x
    x = 38,340,234,624.02/221,119.64
  6. Step 6: Final answer
    x = 173,391.36

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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.