Home / 134,889.05-186,218.25-87,169.62

Finding the Fourth Proportional to 134,889.05, 186,218.25 and 87,169.62

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Solution

The fourth proportional to 134,889.05, 186,218.25 and 87,169.62 is: 120,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,889.05 : 186,218.25 = 87,169.62 : x
  2. Step 2: Convert to fraction form
    134,889.05/186,218.25 = 87,169.62/x
  3. Step 3: Cross multiply
    134,889.05x = 186,218.25 × 87,169.62
  4. Step 4: Simplify right side
    134,889.05x = 16,232,574,089.57
  5. Step 5: Solve for x
    x = 16,232,574,089.57/134,889.05
  6. Step 6: Final answer
    x = 120,340.20

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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.