Home / 191,933.76-287,777.43-79,691.46

Finding the Fourth Proportional to 191,933.76, 287,777.43 and 79,691.46

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Solution

The fourth proportional to 191,933.76, 287,777.43 and 79,691.46 is: 119,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,933.76 : 287,777.43 = 79,691.46 : x
  2. Step 2: Convert to fraction form
    191,933.76/287,777.43 = 79,691.46/x
  3. Step 3: Cross multiply
    191,933.76x = 287,777.43 × 79,691.46
  4. Step 4: Simplify right side
    191,933.76x = 22,933,403,551.75
  5. Step 5: Solve for x
    x = 22,933,403,551.75/191,933.76
  6. Step 6: Final answer
    x = 119,486.03

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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.