Home / 239,119.55-329,981.00-131,699.58

Finding the Fourth Proportional to 239,119.55, 329,981.00 and 131,699.58

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Solution

The fourth proportional to 239,119.55, 329,981.00 and 131,699.58 is: 181,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,119.55 : 329,981.00 = 131,699.58 : x
  2. Step 2: Convert to fraction form
    239,119.55/329,981.00 = 131,699.58/x
  3. Step 3: Cross multiply
    239,119.55x = 329,981.00 × 131,699.58
  4. Step 4: Simplify right side
    239,119.55x = 43,458,359,438.60
  5. Step 5: Solve for x
    x = 43,458,359,438.60/239,119.55
  6. Step 6: Final answer
    x = 181,743.23

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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.