Home / 123,436.20-185,154.30-113,813.40

Finding the Fourth Proportional to 123,436.20, 185,154.30 and 113,813.40

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Solution

The fourth proportional to 123,436.20, 185,154.30 and 113,813.40 is: 170,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,436.20 : 185,154.30 = 113,813.40 : x
  2. Step 2: Convert to fraction form
    123,436.20/185,154.30 = 113,813.40/x
  3. Step 3: Cross multiply
    123,436.20x = 185,154.30 × 113,813.40
  4. Step 4: Simplify right side
    123,436.20x = 21,073,040,407.62
  5. Step 5: Solve for x
    x = 21,073,040,407.62/123,436.20
  6. Step 6: Final answer
    x = 170,720.10

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1.5x scale

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.