Home / 147,261.28-203,247.20-86,828.32

Finding the Fourth Proportional to 147,261.28, 203,247.20 and 86,828.32

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Solution

The fourth proportional to 147,261.28, 203,247.20 and 86,828.32 is: 119,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,261.28 : 203,247.20 = 86,828.32 : x
  2. Step 2: Convert to fraction form
    147,261.28/203,247.20 = 86,828.32/x
  3. Step 3: Cross multiply
    147,261.28x = 203,247.20 × 86,828.32
  4. Step 4: Simplify right side
    147,261.28x = 17,647,612,920.70
  5. Step 5: Solve for x
    x = 17,647,612,920.70/147,261.28
  6. Step 6: Final answer
    x = 119,838.79

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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.