Home / 191,985.31-287,958.52-51,758.11

Finding the Fourth Proportional to 191,985.31, 287,958.52 and 51,758.11

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Solution

The fourth proportional to 191,985.31, 287,958.52 and 51,758.11 is: 77,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,985.31 : 287,958.52 = 51,758.11 : x
  2. Step 2: Convert to fraction form
    191,985.31/287,958.52 = 51,758.11/x
  3. Step 3: Cross multiply
    191,985.31x = 287,958.52 × 51,758.11
  4. Step 4: Simplify right side
    191,985.31x = 14,904,188,753.60
  5. Step 5: Solve for x
    x = 14,904,188,753.60/191,985.31
  6. Step 6: Final answer
    x = 77,631.92

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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.