Home / 133,042.70-199,564.05-69,838.40

Finding the Fourth Proportional to 133,042.70, 199,564.05 and 69,838.40

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Solution

The fourth proportional to 133,042.70, 199,564.05 and 69,838.40 is: 104,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,042.70 : 199,564.05 = 69,838.40 : x
  2. Step 2: Convert to fraction form
    133,042.70/199,564.05 = 69,838.40/x
  3. Step 3: Cross multiply
    133,042.70x = 199,564.05 × 69,838.40
  4. Step 4: Simplify right side
    133,042.70x = 13,937,233,949.52
  5. Step 5: Solve for x
    x = 13,937,233,949.52/133,042.70
  6. Step 6: Final answer
    x = 104,757.60

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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.