Home / 140,427.30-193,775.96-79,993.20

Finding the Fourth Proportional to 140,427.30, 193,775.96 and 79,993.20

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Solution

The fourth proportional to 140,427.30, 193,775.96 and 79,993.20 is: 110,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.30 : 193,775.96 = 79,993.20 : x
  2. Step 2: Convert to fraction form
    140,427.30/193,775.96 = 79,993.20/x
  3. Step 3: Cross multiply
    140,427.30x = 193,775.96 × 79,993.20
  4. Step 4: Simplify right side
    140,427.30x = 15,500,759,123.47
  5. Step 5: Solve for x
    x = 15,500,759,123.47/140,427.30
  6. Step 6: Final answer
    x = 110,382.80

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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.