Home / 108,639.84-149,909.76-60,882.96

Finding the Fourth Proportional to 108,639.84, 149,909.76 and 60,882.96

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Solution

The fourth proportional to 108,639.84, 149,909.76 and 60,882.96 is: 84,011.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,639.84 : 149,909.76 = 60,882.96 : x
  2. Step 2: Convert to fraction form
    108,639.84/149,909.76 = 60,882.96/x
  3. Step 3: Cross multiply
    108,639.84x = 149,909.76 × 60,882.96
  4. Step 4: Simplify right side
    108,639.84x = 9,126,949,921.69
  5. Step 5: Solve for x
    x = 9,126,949,921.69/108,639.84
  6. Step 6: Final answer
    x = 84,011.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.