Home / 108,475.15-162,548.70-91,744.60

Finding the Fourth Proportional to 108,475.15, 162,548.70 and 91,744.60

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Solution

The fourth proportional to 108,475.15, 162,548.70 and 91,744.60 is: 137,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,475.15 : 162,548.70 = 91,744.60 : x
  2. Step 2: Convert to fraction form
    108,475.15/162,548.70 = 91,744.60/x
  3. Step 3: Cross multiply
    108,475.15x = 162,548.70 × 91,744.60
  4. Step 4: Simplify right side
    108,475.15x = 14,912,965,462.02
  5. Step 5: Solve for x
    x = 14,912,965,462.02/108,475.15
  6. Step 6: Final answer
    x = 137,478.17

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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.