Home / 157,721.62-217,659.56-86,102.18

Finding the Fourth Proportional to 157,721.62, 217,659.56 and 86,102.18

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Solution

The fourth proportional to 157,721.62, 217,659.56 and 86,102.18 is: 118,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,721.62 : 217,659.56 = 86,102.18 : x
  2. Step 2: Convert to fraction form
    157,721.62/217,659.56 = 86,102.18/x
  3. Step 3: Cross multiply
    157,721.62x = 217,659.56 × 86,102.18
  4. Step 4: Simplify right side
    157,721.62x = 18,740,961,525.54
  5. Step 5: Solve for x
    x = 18,740,961,525.54/157,721.62
  6. Step 6: Final answer
    x = 118,823.04

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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.