Home / 186,388.86-279,382.20-91,508.70

Finding the Fourth Proportional to 186,388.86, 279,382.20 and 91,508.70

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Solution

The fourth proportional to 186,388.86, 279,382.20 and 91,508.70 is: 137,164.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,388.86 : 279,382.20 = 91,508.70 : x
  2. Step 2: Convert to fraction form
    186,388.86/279,382.20 = 91,508.70/x
  3. Step 3: Cross multiply
    186,388.86x = 279,382.20 × 91,508.70
  4. Step 4: Simplify right side
    186,388.86x = 25,565,901,925.14
  5. Step 5: Solve for x
    x = 25,565,901,925.14/186,388.86
  6. Step 6: Final answer
    x = 137,164.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.