Home / 146,542.54-202,231-86,121.20

Finding the Fourth Proportional to 146,542.54, 202,231 and 86,121.20

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Solution

The fourth proportional to 146,542.54, 202,231 and 86,121.20 is: 118,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,542.54 : 202,231 = 86,121.20 : x
  2. Step 2: Convert to fraction form
    146,542.54/202,231 = 86,121.20/x
  3. Step 3: Cross multiply
    146,542.54x = 202,231 × 86,121.20
  4. Step 4: Simplify right side
    146,542.54x = 17,416,376,397.20
  5. Step 5: Solve for x
    x = 17,416,376,397.20/146,542.54
  6. Step 6: Final answer
    x = 118,848.60

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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.