Home / 117,093.40-161,549.23-76,238.87

Finding the Fourth Proportional to 117,093.40, 161,549.23 and 76,238.87

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Solution

The fourth proportional to 117,093.40, 161,549.23 and 76,238.87 is: 105,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,093.40 : 161,549.23 = 76,238.87 : x
  2. Step 2: Convert to fraction form
    117,093.40/161,549.23 = 76,238.87/x
  3. Step 3: Cross multiply
    117,093.40x = 161,549.23 × 76,238.87
  4. Step 4: Simplify right side
    117,093.40x = 12,316,330,744.57
  5. Step 5: Solve for x
    x = 12,316,330,744.57/117,093.40
  6. Step 6: Final answer
    x = 105,183.82

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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.