Home / 108,480.40-149,685.68-60,735.76

Finding the Fourth Proportional to 108,480.40, 149,685.68 and 60,735.76

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Solution

The fourth proportional to 108,480.40, 149,685.68 and 60,735.76 is: 83,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,480.40 : 149,685.68 = 60,735.76 : x
  2. Step 2: Convert to fraction form
    108,480.40/149,685.68 = 60,735.76/x
  3. Step 3: Cross multiply
    108,480.40x = 149,685.68 × 60,735.76
  4. Step 4: Simplify right side
    108,480.40x = 9,091,273,535.92
  5. Step 5: Solve for x
    x = 9,091,273,535.92/108,480.40
  6. Step 6: Final answer
    x = 83,805.68

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1.5x scale

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.