Home / 191,933.20-287,791.80-73,608.40

Finding the Fourth Proportional to 191,933.20, 287,791.80 and 73,608.40

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Solution

The fourth proportional to 191,933.20, 287,791.80 and 73,608.40 is: 110,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,933.20 : 287,791.80 = 73,608.40 : x
  2. Step 2: Convert to fraction form
    191,933.20/287,791.80 = 73,608.40/x
  3. Step 3: Cross multiply
    191,933.20x = 287,791.80 × 73,608.40
  4. Step 4: Simplify right side
    191,933.20x = 21,183,893,931.12
  5. Step 5: Solve for x
    x = 21,183,893,931.12/191,933.20
  6. Step 6: Final answer
    x = 110,371.18

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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.