Home / 157,982.52-218,017.32-86,361.24

Finding the Fourth Proportional to 157,982.52, 218,017.32 and 86,361.24

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Solution

The fourth proportional to 157,982.52, 218,017.32 and 86,361.24 is: 119,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,982.52 : 218,017.32 = 86,361.24 : x
  2. Step 2: Convert to fraction form
    157,982.52/218,017.32 = 86,361.24/x
  3. Step 3: Cross multiply
    157,982.52x = 218,017.32 × 86,361.24
  4. Step 4: Simplify right side
    157,982.52x = 18,828,246,096.68
  5. Step 5: Solve for x
    x = 18,828,246,096.68/157,982.52
  6. Step 6: Final answer
    x = 119,179.30

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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.