Home / 155,788.34-214,987.62-84,168.14

Finding the Fourth Proportional to 155,788.34, 214,987.62 and 84,168.14

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Solution

The fourth proportional to 155,788.34, 214,987.62 and 84,168.14 is: 116,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,788.34 : 214,987.62 = 84,168.14 : x
  2. Step 2: Convert to fraction form
    155,788.34/214,987.62 = 84,168.14/x
  3. Step 3: Cross multiply
    155,788.34x = 214,987.62 × 84,168.14
  4. Step 4: Simplify right side
    155,788.34x = 18,095,108,098.43
  5. Step 5: Solve for x
    x = 18,095,108,098.43/155,788.34
  6. Step 6: Final answer
    x = 116,151.88

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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.