Home / 191,405.09-287,149.15-58,281.86

Finding the Fourth Proportional to 191,405.09, 287,149.15 and 58,281.86

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Solution

The fourth proportional to 191,405.09, 287,149.15 and 58,281.86 is: 87,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,405.09 : 287,149.15 = 58,281.86 : x
  2. Step 2: Convert to fraction form
    191,405.09/287,149.15 = 58,281.86/x
  3. Step 3: Cross multiply
    191,405.09x = 287,149.15 × 58,281.86
  4. Step 4: Simplify right side
    191,405.09x = 16,735,587,350.14
  5. Step 5: Solve for x
    x = 16,735,587,350.14/191,405.09
  6. Step 6: Final answer
    x = 87,435.43

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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.