Home / 191,821.40-287,732.10-152,163.80

Finding the Fourth Proportional to 191,821.40, 287,732.10 and 152,163.80

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Solution

The fourth proportional to 191,821.40, 287,732.10 and 152,163.80 is: 228,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,821.40 : 287,732.10 = 152,163.80 : x
  2. Step 2: Convert to fraction form
    191,821.40/287,732.10 = 152,163.80/x
  3. Step 3: Cross multiply
    191,821.40x = 287,732.10 × 152,163.80
  4. Step 4: Simplify right side
    191,821.40x = 43,782,409,717.98
  5. Step 5: Solve for x
    x = 43,782,409,717.98/191,821.40
  6. Step 6: Final answer
    x = 228,245.70

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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.