Home / 205,774.40-283,979.72-115,124.96

Finding the Fourth Proportional to 205,774.40, 283,979.72 and 115,124.96

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Solution

The fourth proportional to 205,774.40, 283,979.72 and 115,124.96 is: 158,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,774.40 : 283,979.72 = 115,124.96 : x
  2. Step 2: Convert to fraction form
    205,774.40/283,979.72 = 115,124.96/x
  3. Step 3: Cross multiply
    205,774.40x = 283,979.72 × 115,124.96
  4. Step 4: Simplify right side
    205,774.40x = 32,693,153,905.81
  5. Step 5: Solve for x
    x = 32,693,153,905.81/205,774.40
  6. Step 6: Final answer
    x = 158,878.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.