Home / 134,381.92-185,408.58-86,662.66

Finding the Fourth Proportional to 134,381.92, 185,408.58 and 86,662.66

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Solution

The fourth proportional to 134,381.92, 185,408.58 and 86,662.66 is: 119,569.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,381.92 : 185,408.58 = 86,662.66 : x
  2. Step 2: Convert to fraction form
    134,381.92/185,408.58 = 86,662.66/x
  3. Step 3: Cross multiply
    134,381.92x = 185,408.58 × 86,662.66
  4. Step 4: Simplify right side
    134,381.92x = 16,068,000,729.62
  5. Step 5: Solve for x
    x = 16,068,000,729.62/134,381.92
  6. Step 6: Final answer
    x = 119,569.66

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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.