Home / 205,053.10-307,666.05-111,625.90

Finding the Fourth Proportional to 205,053.10, 307,666.05 and 111,625.90

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Solution

The fourth proportional to 205,053.10, 307,666.05 and 111,625.90 is: 167,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,053.10 : 307,666.05 = 111,625.90 : x
  2. Step 2: Convert to fraction form
    205,053.10/307,666.05 = 111,625.90/x
  3. Step 3: Cross multiply
    205,053.10x = 307,666.05 × 111,625.90
  4. Step 4: Simplify right side
    205,053.10x = 34,343,499,730.70
  5. Step 5: Solve for x
    x = 34,343,499,730.70/205,053.10
  6. Step 6: Final answer
    x = 167,485.88

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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.