Home / 149,756.13-206,639.96-86,082.03

Finding the Fourth Proportional to 149,756.13, 206,639.96 and 86,082.03

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Solution

The fourth proportional to 149,756.13, 206,639.96 and 86,082.03 is: 118,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,756.13 : 206,639.96 = 86,082.03 : x
  2. Step 2: Convert to fraction form
    149,756.13/206,639.96 = 86,082.03/x
  3. Step 3: Cross multiply
    149,756.13x = 206,639.96 × 86,082.03
  4. Step 4: Simplify right side
    149,756.13x = 17,787,986,202.72
  5. Step 5: Solve for x
    x = 17,787,986,202.72/149,756.13
  6. Step 6: Final answer
    x = 118,779.69

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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.