Home / 157,913.67-217,917.27-86,294.13

Finding the Fourth Proportional to 157,913.67, 217,917.27 and 86,294.13

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Solution

The fourth proportional to 157,913.67, 217,917.27 and 86,294.13 is: 119,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,913.67 : 217,917.27 = 86,294.13 : x
  2. Step 2: Convert to fraction form
    157,913.67/217,917.27 = 86,294.13/x
  3. Step 3: Cross multiply
    157,913.67x = 217,917.27 × 86,294.13
  4. Step 4: Simplify right side
    157,913.67x = 18,804,981,226.63
  5. Step 5: Solve for x
    x = 18,804,981,226.63/157,913.67
  6. Step 6: Final answer
    x = 119,083.94

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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.