Home / 133,086.15-183,859.20-87,254.70

Finding the Fourth Proportional to 133,086.15, 183,859.20 and 87,254.70

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Solution

The fourth proportional to 133,086.15, 183,859.20 and 87,254.70 is: 120,542.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,086.15 : 183,859.20 = 87,254.70 : x
  2. Step 2: Convert to fraction form
    133,086.15/183,859.20 = 87,254.70/x
  3. Step 3: Cross multiply
    133,086.15x = 183,859.20 × 87,254.70
  4. Step 4: Simplify right side
    133,086.15x = 16,042,579,338.24
  5. Step 5: Solve for x
    x = 16,042,579,338.24/133,086.15
  6. Step 6: Final answer
    x = 120,542.82

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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.