Home / 191,819.40-287,729.10-152,161.80

Finding the Fourth Proportional to 191,819.40, 287,729.10 and 152,161.80

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Solution

The fourth proportional to 191,819.40, 287,729.10 and 152,161.80 is: 228,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,819.40 : 287,729.10 = 152,161.80 : x
  2. Step 2: Convert to fraction form
    191,819.40/287,729.10 = 152,161.80/x
  3. Step 3: Cross multiply
    191,819.40x = 287,729.10 × 152,161.80
  4. Step 4: Simplify right side
    191,819.40x = 43,781,377,768.38
  5. Step 5: Solve for x
    x = 43,781,377,768.38/191,819.40
  6. Step 6: Final answer
    x = 228,242.70

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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.