Home / 155,790.34-214,990.38-84,170.14

Finding the Fourth Proportional to 155,790.34, 214,990.38 and 84,170.14

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Solution

The fourth proportional to 155,790.34, 214,990.38 and 84,170.14 is: 116,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,790.34 : 214,990.38 = 84,170.14 : x
  2. Step 2: Convert to fraction form
    155,790.34/214,990.38 = 84,170.14/x
  3. Step 3: Cross multiply
    155,790.34x = 214,990.38 × 84,170.14
  4. Step 4: Simplify right side
    155,790.34x = 18,095,770,383.25
  5. Step 5: Solve for x
    x = 18,095,770,383.25/155,790.34
  6. Step 6: Final answer
    x = 116,154.64

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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.