Home / 133,127.90-199,750.40-69,933.38

Finding the Fourth Proportional to 133,127.90, 199,750.40 and 69,933.38

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Solution

The fourth proportional to 133,127.90, 199,750.40 and 69,933.38 is: 104,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,127.90 : 199,750.40 = 69,933.38 : x
  2. Step 2: Convert to fraction form
    133,127.90/199,750.40 = 69,933.38/x
  3. Step 3: Cross multiply
    133,127.90x = 199,750.40 × 69,933.38
  4. Step 4: Simplify right side
    133,127.90x = 13,969,219,935.56
  5. Step 5: Solve for x
    x = 13,969,219,935.56/133,127.90
  6. Step 6: Final answer
    x = 104,930.82

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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.