Home / 195,748.68-270,245.10-128,875.08

Finding the Fourth Proportional to 195,748.68, 270,245.10 and 128,875.08

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Solution

The fourth proportional to 195,748.68, 270,245.10 and 128,875.08 is: 177,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,748.68 : 270,245.10 = 128,875.08 : x
  2. Step 2: Convert to fraction form
    195,748.68/270,245.10 = 128,875.08/x
  3. Step 3: Cross multiply
    195,748.68x = 270,245.10 × 128,875.08
  4. Step 4: Simplify right side
    195,748.68x = 34,827,858,882.11
  5. Step 5: Solve for x
    x = 34,827,858,882.11/195,748.68
  6. Step 6: Final answer
    x = 177,921.30

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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.