Home / 102,664.80-153,997.20-84,002.40

Finding the Fourth Proportional to 102,664.80, 153,997.20 and 84,002.40

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Solution

The fourth proportional to 102,664.80, 153,997.20 and 84,002.40 is: 126,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,664.80 : 153,997.20 = 84,002.40 : x
  2. Step 2: Convert to fraction form
    102,664.80/153,997.20 = 84,002.40/x
  3. Step 3: Cross multiply
    102,664.80x = 153,997.20 × 84,002.40
  4. Step 4: Simplify right side
    102,664.80x = 12,936,134,393.28
  5. Step 5: Solve for x
    x = 12,936,134,393.28/102,664.80
  6. Step 6: Final answer
    x = 126,003.60

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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.