Home / 157,634.49-217,540.84-86,018.44

Finding the Fourth Proportional to 157,634.49, 217,540.84 and 86,018.44

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Solution

The fourth proportional to 157,634.49, 217,540.84 and 86,018.44 is: 118,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,634.49 : 217,540.84 = 86,018.44 : x
  2. Step 2: Convert to fraction form
    157,634.49/217,540.84 = 86,018.44/x
  3. Step 3: Cross multiply
    157,634.49x = 217,540.84 × 86,018.44
  4. Step 4: Simplify right side
    157,634.49x = 18,712,522,605.39
  5. Step 5: Solve for x
    x = 18,712,522,605.39/157,634.49
  6. Step 6: Final answer
    x = 118,708.31

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1.5x scale

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.