Home / 124,720.20-186,942.06-74,867.40

Finding the Fourth Proportional to 124,720.20, 186,942.06 and 74,867.40

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Solution

The fourth proportional to 124,720.20, 186,942.06 and 74,867.40 is: 112,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,720.20 : 186,942.06 = 74,867.40 : x
  2. Step 2: Convert to fraction form
    124,720.20/186,942.06 = 74,867.40/x
  3. Step 3: Cross multiply
    124,720.20x = 186,942.06 × 74,867.40
  4. Step 4: Simplify right side
    124,720.20x = 13,995,865,982.84
  5. Step 5: Solve for x
    x = 13,995,865,982.84/124,720.20
  6. Step 6: Final answer
    x = 112,218.12

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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.