Home / 113,380.20-170,264.70-74,111.40

Finding the Fourth Proportional to 113,380.20, 170,264.70 and 74,111.40

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Solution

The fourth proportional to 113,380.20, 170,264.70 and 74,111.40 is: 111,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,380.20 : 170,264.70 = 74,111.40 : x
  2. Step 2: Convert to fraction form
    113,380.20/170,264.70 = 74,111.40/x
  3. Step 3: Cross multiply
    113,380.20x = 170,264.70 × 74,111.40
  4. Step 4: Simplify right side
    113,380.20x = 12,618,555,287.58
  5. Step 5: Solve for x
    x = 12,618,555,287.58/113,380.20
  6. Step 6: Final answer
    x = 111,294.17

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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.