Home / 157,919.66-217,929.70-86,299.69

Finding the Fourth Proportional to 157,919.66, 217,929.70 and 86,299.69

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Solution

The fourth proportional to 157,919.66, 217,929.70 and 86,299.69 is: 119,093.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,919.66 : 217,929.70 = 86,299.69 : x
  2. Step 2: Convert to fraction form
    157,919.66/217,929.70 = 86,299.69/x
  3. Step 3: Cross multiply
    157,919.66x = 217,929.70 × 86,299.69
  4. Step 4: Simplify right side
    157,919.66x = 18,807,265,551.79
  5. Step 5: Solve for x
    x = 18,807,265,551.79/157,919.66
  6. Step 6: Final answer
    x = 119,093.88

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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.