Home / 195,747.18-270,243.03-128,873.58

Finding the Fourth Proportional to 195,747.18, 270,243.03 and 128,873.58

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Solution

The fourth proportional to 195,747.18, 270,243.03 and 128,873.58 is: 177,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,747.18 : 270,243.03 = 128,873.58 : x
  2. Step 2: Convert to fraction form
    195,747.18/270,243.03 = 128,873.58/x
  3. Step 3: Cross multiply
    195,747.18x = 270,243.03 × 128,873.58
  4. Step 4: Simplify right side
    195,747.18x = 34,827,186,746.15
  5. Step 5: Solve for x
    x = 34,827,186,746.15/195,747.18
  6. Step 6: Final answer
    x = 177,919.23

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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.