Home / 146,177.20-201,725.16-79,109.20

Finding the Fourth Proportional to 146,177.20, 201,725.16 and 79,109.20

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Solution

The fourth proportional to 146,177.20, 201,725.16 and 79,109.20 is: 109,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,177.20 : 201,725.16 = 79,109.20 : x
  2. Step 2: Convert to fraction form
    146,177.20/201,725.16 = 79,109.20/x
  3. Step 3: Cross multiply
    146,177.20x = 201,725.16 × 79,109.20
  4. Step 4: Simplify right side
    146,177.20x = 15,958,316,027.47
  5. Step 5: Solve for x
    x = 15,958,316,027.47/146,177.20
  6. Step 6: Final answer
    x = 109,171.03

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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.