Home / 133,053.10-199,636.35-69,921.70

Finding the Fourth Proportional to 133,053.10, 199,636.35 and 69,921.70

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Solution

The fourth proportional to 133,053.10, 199,636.35 and 69,921.70 is: 104,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,053.10 : 199,636.35 = 69,921.70 : x
  2. Step 2: Convert to fraction form
    133,053.10/199,636.35 = 69,921.70/x
  3. Step 3: Cross multiply
    133,053.10x = 199,636.35 × 69,921.70
  4. Step 4: Simplify right side
    133,053.10x = 13,958,912,973.80
  5. Step 5: Solve for x
    x = 13,958,912,973.80/133,053.10
  6. Step 6: Final answer
    x = 104,912.35

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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.