Home / 170,499.14-255,906.45-86,318.45

Finding the Fourth Proportional to 170,499.14, 255,906.45 and 86,318.45

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Solution

The fourth proportional to 170,499.14, 255,906.45 and 86,318.45 is: 129,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,499.14 : 255,906.45 = 86,318.45 : x
  2. Step 2: Convert to fraction form
    170,499.14/255,906.45 = 86,318.45/x
  3. Step 3: Cross multiply
    170,499.14x = 255,906.45 × 86,318.45
  4. Step 4: Simplify right side
    170,499.14x = 22,089,446,829.47
  5. Step 5: Solve for x
    x = 22,089,446,829.47/170,499.14
  6. Step 6: Final answer
    x = 129,557.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.