Home / 102,720.20-153,983.10-60,632.60

Finding the Fourth Proportional to 102,720.20, 153,983.10 and 60,632.60

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Solution

The fourth proportional to 102,720.20, 153,983.10 and 60,632.60 is: 90,891.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,720.20 : 153,983.10 = 60,632.60 : x
  2. Step 2: Convert to fraction form
    102,720.20/153,983.10 = 60,632.60/x
  3. Step 3: Cross multiply
    102,720.20x = 153,983.10 × 60,632.60
  4. Step 4: Simplify right side
    102,720.20x = 9,336,395,709.06
  5. Step 5: Solve for x
    x = 9,336,395,709.06/102,720.20
  6. Step 6: Final answer
    x = 90,891.53

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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.