Home / 102,721.20-153,984.60-60,633.60

Finding the Fourth Proportional to 102,721.20, 153,984.60 and 60,633.60

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Solution

The fourth proportional to 102,721.20, 153,984.60 and 60,633.60 is: 90,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,721.20 : 153,984.60 = 60,633.60 : x
  2. Step 2: Convert to fraction form
    102,721.20/153,984.60 = 60,633.60/x
  3. Step 3: Cross multiply
    102,721.20x = 153,984.60 × 60,633.60
  4. Step 4: Simplify right side
    102,721.20x = 9,336,640,642.56
  5. Step 5: Solve for x
    x = 9,336,640,642.56/102,721.20
  6. Step 6: Final answer
    x = 90,893.03

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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.