Home / 135,025.94-186,330.08-77,660.93

Finding the Fourth Proportional to 135,025.94, 186,330.08 and 77,660.93

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Solution

The fourth proportional to 135,025.94, 186,330.08 and 77,660.93 is: 107,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,025.94 : 186,330.08 = 77,660.93 : x
  2. Step 2: Convert to fraction form
    135,025.94/186,330.08 = 77,660.93/x
  3. Step 3: Cross multiply
    135,025.94x = 186,330.08 × 77,660.93
  4. Step 4: Simplify right side
    135,025.94x = 14,470,565,979.82
  5. Step 5: Solve for x
    x = 14,470,565,979.82/135,025.94
  6. Step 6: Final answer
    x = 107,168.79

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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.