Home / 133,043.10-199,564.65-115,158.30

Finding the Fourth Proportional to 133,043.10, 199,564.65 and 115,158.30

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Solution

The fourth proportional to 133,043.10, 199,564.65 and 115,158.30 is: 172,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,043.10 : 199,564.65 = 115,158.30 : x
  2. Step 2: Convert to fraction form
    133,043.10/199,564.65 = 115,158.30/x
  3. Step 3: Cross multiply
    133,043.10x = 199,564.65 × 115,158.30
  4. Step 4: Simplify right side
    133,043.10x = 22,981,525,834.10
  5. Step 5: Solve for x
    x = 22,981,525,834.10/133,043.10
  6. Step 6: Final answer
    x = 172,737.45

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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.