Home / 179,728.20-248,022.56-99,159.12

Finding the Fourth Proportional to 179,728.20, 248,022.56 and 99,159.12

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Solution

The fourth proportional to 179,728.20, 248,022.56 and 99,159.12 is: 136,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,728.20 : 248,022.56 = 99,159.12 : x
  2. Step 2: Convert to fraction form
    179,728.20/248,022.56 = 99,159.12/x
  3. Step 3: Cross multiply
    179,728.20x = 248,022.56 × 99,159.12
  4. Step 4: Simplify right side
    179,728.20x = 24,593,698,789.75
  5. Step 5: Solve for x
    x = 24,593,698,789.75/179,728.20
  6. Step 6: Final answer
    x = 136,838.29

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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.