Home / 191,385.78-287,120.18-58,262.60

Finding the Fourth Proportional to 191,385.78, 287,120.18 and 58,262.60

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Solution

The fourth proportional to 191,385.78, 287,120.18 and 58,262.60 is: 87,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,385.78 : 287,120.18 = 58,262.60 : x
  2. Step 2: Convert to fraction form
    191,385.78/287,120.18 = 58,262.60/x
  3. Step 3: Cross multiply
    191,385.78x = 287,120.18 × 58,262.60
  4. Step 4: Simplify right side
    191,385.78x = 16,728,366,909.32
  5. Step 5: Solve for x
    x = 16,728,366,909.32/191,385.78
  6. Step 6: Final answer
    x = 87,406.53

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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.