Home / 191,819.61-287,812.35-102,969.36

Finding the Fourth Proportional to 191,819.61, 287,812.35 and 102,969.36

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Solution

The fourth proportional to 191,819.61, 287,812.35 and 102,969.36 is: 154,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,819.61 : 287,812.35 = 102,969.36 : x
  2. Step 2: Convert to fraction form
    191,819.61/287,812.35 = 102,969.36/x
  3. Step 3: Cross multiply
    191,819.61x = 287,812.35 × 102,969.36
  4. Step 4: Simplify right side
    191,819.61x = 29,635,853,479.60
  5. Step 5: Solve for x
    x = 29,635,853,479.60/191,819.61
  6. Step 6: Final answer
    x = 154,498.56

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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.