Home / 100,002.96-138,016.26-57,560.60

Finding the Fourth Proportional to 100,002.96, 138,016.26 and 57,560.60

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Solution

The fourth proportional to 100,002.96, 138,016.26 and 57,560.60 is: 79,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,002.96 : 138,016.26 = 57,560.60 : x
  2. Step 2: Convert to fraction form
    100,002.96/138,016.26 = 57,560.60/x
  3. Step 3: Cross multiply
    100,002.96x = 138,016.26 × 57,560.60
  4. Step 4: Simplify right side
    100,002.96x = 7,944,298,735.36
  5. Step 5: Solve for x
    x = 7,944,298,735.36/100,002.96
  6. Step 6: Final answer
    x = 79,440.64

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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.