Home / 113,816.20-170,724.30-76,491.40

Finding the Fourth Proportional to 113,816.20, 170,724.30 and 76,491.40

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Solution

The fourth proportional to 113,816.20, 170,724.30 and 76,491.40 is: 114,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,816.20 : 170,724.30 = 76,491.40 : x
  2. Step 2: Convert to fraction form
    113,816.20/170,724.30 = 76,491.40/x
  3. Step 3: Cross multiply
    113,816.20x = 170,724.30 × 76,491.40
  4. Step 4: Simplify right side
    113,816.20x = 13,058,940,721.02
  5. Step 5: Solve for x
    x = 13,058,940,721.02/113,816.20
  6. Step 6: Final answer
    x = 114,737.10

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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.