Home / 157,634.69-217,534.07-86,015.91

Finding the Fourth Proportional to 157,634.69, 217,534.07 and 86,015.91

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Solution

The fourth proportional to 157,634.69, 217,534.07 and 86,015.91 is: 118,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,634.69 : 217,534.07 = 86,015.91 : x
  2. Step 2: Convert to fraction form
    157,634.69/217,534.07 = 86,015.91/x
  3. Step 3: Cross multiply
    157,634.69x = 217,534.07 × 86,015.91
  4. Step 4: Simplify right side
    157,634.69x = 18,711,390,556.97
  5. Step 5: Solve for x
    x = 18,711,390,556.97/157,634.69
  6. Step 6: Final answer
    x = 118,700.97

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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.