Home / 113,977.80-171,258.30-101,147.40

Finding the Fourth Proportional to 113,977.80, 171,258.30 and 101,147.40

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Solution

The fourth proportional to 113,977.80, 171,258.30 and 101,147.40 is: 151,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,977.80 : 171,258.30 = 101,147.40 : x
  2. Step 2: Convert to fraction form
    113,977.80/171,258.30 = 101,147.40/x
  3. Step 3: Cross multiply
    113,977.80x = 171,258.30 × 101,147.40
  4. Step 4: Simplify right side
    113,977.80x = 17,322,331,773.42
  5. Step 5: Solve for x
    x = 17,322,331,773.42/113,977.80
  6. Step 6: Final answer
    x = 151,979.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.