Home / 113,087.21-169,372.45-53,964.40

Finding the Fourth Proportional to 113,087.21, 169,372.45 and 53,964.40

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Solution

The fourth proportional to 113,087.21, 169,372.45 and 53,964.40 is: 80,823.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,087.21 : 169,372.45 = 53,964.40 : x
  2. Step 2: Convert to fraction form
    113,087.21/169,372.45 = 53,964.40/x
  3. Step 3: Cross multiply
    113,087.21x = 169,372.45 × 53,964.40
  4. Step 4: Simplify right side
    113,087.21x = 9,140,082,640.78
  5. Step 5: Solve for x
    x = 9,140,082,640.78/113,087.21
  6. Step 6: Final answer
    x = 80,823.31

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1.5x scale

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.