Home / 133,070.80-199,337.40-82,997.20

Finding the Fourth Proportional to 133,070.80, 199,337.40 and 82,997.20

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Solution

The fourth proportional to 133,070.80, 199,337.40 and 82,997.20 is: 124,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,070.80 : 199,337.40 = 82,997.20 : x
  2. Step 2: Convert to fraction form
    133,070.80/199,337.40 = 82,997.20/x
  3. Step 3: Cross multiply
    133,070.80x = 199,337.40 × 82,997.20
  4. Step 4: Simplify right side
    133,070.80x = 16,544,446,055.28
  5. Step 5: Solve for x
    x = 16,544,446,055.28/133,070.80
  6. Step 6: Final answer
    x = 124,328.15

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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.