Home / 133,068.20-199,602.30-91,077.80

Finding the Fourth Proportional to 133,068.20, 199,602.30 and 91,077.80

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Solution

The fourth proportional to 133,068.20, 199,602.30 and 91,077.80 is: 136,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.20 : 199,602.30 = 91,077.80 : x
  2. Step 2: Convert to fraction form
    133,068.20/199,602.30 = 91,077.80/x
  3. Step 3: Cross multiply
    133,068.20x = 199,602.30 × 91,077.80
  4. Step 4: Simplify right side
    133,068.20x = 18,179,338,358.94
  5. Step 5: Solve for x
    x = 18,179,338,358.94/133,068.20
  6. Step 6: Final answer
    x = 136,616.70

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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.