Home / 135,252.48-186,585.54-87,521.24

Finding the Fourth Proportional to 135,252.48, 186,585.54 and 87,521.24

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Solution

The fourth proportional to 135,252.48, 186,585.54 and 87,521.24 is: 120,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,252.48 : 186,585.54 = 87,521.24 : x
  2. Step 2: Convert to fraction form
    135,252.48/186,585.54 = 87,521.24/x
  3. Step 3: Cross multiply
    135,252.48x = 186,585.54 × 87,521.24
  4. Step 4: Simplify right side
    135,252.48x = 16,330,197,826.87
  5. Step 5: Solve for x
    x = 16,330,197,826.87/135,252.48
  6. Step 6: Final answer
    x = 120,738.62

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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.