Home / 204,053.10-306,079.65-121,109.10

Finding the Fourth Proportional to 204,053.10, 306,079.65 and 121,109.10

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Solution

The fourth proportional to 204,053.10, 306,079.65 and 121,109.10 is: 181,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,053.10 : 306,079.65 = 121,109.10 : x
  2. Step 2: Convert to fraction form
    204,053.10/306,079.65 = 121,109.10/x
  3. Step 3: Cross multiply
    204,053.10x = 306,079.65 × 121,109.10
  4. Step 4: Simplify right side
    204,053.10x = 37,069,030,939.82
  5. Step 5: Solve for x
    x = 37,069,030,939.82/204,053.10
  6. Step 6: Final answer
    x = 181,663.65

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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.