Home / 105,340.20-157,754.30-55,983.40

Finding the Fourth Proportional to 105,340.20, 157,754.30 and 55,983.40

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Solution

The fourth proportional to 105,340.20, 157,754.30 and 55,983.40 is: 83,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,340.20 : 157,754.30 = 55,983.40 : x
  2. Step 2: Convert to fraction form
    105,340.20/157,754.30 = 55,983.40/x
  3. Step 3: Cross multiply
    105,340.20x = 157,754.30 × 55,983.40
  4. Step 4: Simplify right side
    105,340.20x = 8,831,622,078.62
  5. Step 5: Solve for x
    x = 8,831,622,078.62/105,340.20
  6. Step 6: Final answer
    x = 83,839.05

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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.