Home / 149,975.55-206,972.51-86,313.51

Finding the Fourth Proportional to 149,975.55, 206,972.51 and 86,313.51

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Solution

The fourth proportional to 149,975.55, 206,972.51 and 86,313.51 is: 119,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,975.55 : 206,972.51 = 86,313.51 : x
  2. Step 2: Convert to fraction form
    149,975.55/206,972.51 = 86,313.51/x
  3. Step 3: Cross multiply
    149,975.55x = 206,972.51 × 86,313.51
  4. Step 4: Simplify right side
    149,975.55x = 17,864,523,380.04
  5. Step 5: Solve for x
    x = 17,864,523,380.04/149,975.55
  6. Step 6: Final answer
    x = 119,116.24

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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.