Home / 191,921.10-287,856.45-58,814.70

Finding the Fourth Proportional to 191,921.10, 287,856.45 and 58,814.70

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Solution

The fourth proportional to 191,921.10, 287,856.45 and 58,814.70 is: 88,214.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,921.10 : 287,856.45 = 58,814.70 : x
  2. Step 2: Convert to fraction form
    191,921.10/287,856.45 = 58,814.70/x
  3. Step 3: Cross multiply
    191,921.10x = 287,856.45 × 58,814.70
  4. Step 4: Simplify right side
    191,921.10x = 16,930,190,749.82
  5. Step 5: Solve for x
    x = 16,930,190,749.82/191,921.10
  6. Step 6: Final answer
    x = 88,214.33

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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.