Home / 108,816.28-163,068.90-61,972.36

Finding the Fourth Proportional to 108,816.28, 163,068.90 and 61,972.36

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Solution

The fourth proportional to 108,816.28, 163,068.90 and 61,972.36 is: 92,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,816.28 : 163,068.90 = 61,972.36 : x
  2. Step 2: Convert to fraction form
    108,816.28/163,068.90 = 61,972.36/x
  3. Step 3: Cross multiply
    108,816.28x = 163,068.90 × 61,972.36
  4. Step 4: Simplify right side
    108,816.28x = 10,105,764,575.60
  5. Step 5: Solve for x
    x = 10,105,764,575.60/108,816.28
  6. Step 6: Final answer
    x = 92,869.97

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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.