Home / 134,785.08-186,063.18-87,061.71

Finding the Fourth Proportional to 134,785.08, 186,063.18 and 87,061.71

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Solution

The fourth proportional to 134,785.08, 186,063.18 and 87,061.71 is: 120,183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,785.08 : 186,063.18 = 87,061.71 : x
  2. Step 2: Convert to fraction form
    134,785.08/186,063.18 = 87,061.71/x
  3. Step 3: Cross multiply
    134,785.08x = 186,063.18 × 87,061.71
  4. Step 4: Simplify right side
    134,785.08x = 16,198,978,618.84
  5. Step 5: Solve for x
    x = 16,198,978,618.84/134,785.08
  6. Step 6: Final answer
    x = 120,183.77

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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.