Home / 150,737.12-207,986.32-86,202.72

Finding the Fourth Proportional to 150,737.12, 207,986.32 and 86,202.72

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Solution

The fourth proportional to 150,737.12, 207,986.32 and 86,202.72 is: 118,942.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,737.12 : 207,986.32 = 86,202.72 : x
  2. Step 2: Convert to fraction form
    150,737.12/207,986.32 = 86,202.72/x
  3. Step 3: Cross multiply
    150,737.12x = 207,986.32 × 86,202.72
  4. Step 4: Simplify right side
    150,737.12x = 17,928,986,506.79
  5. Step 5: Solve for x
    x = 17,928,986,506.79/150,737.12
  6. Step 6: Final answer
    x = 118,942.08

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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.