Home / 137,574.18-206,361.27-90,816.12

Finding the Fourth Proportional to 137,574.18, 206,361.27 and 90,816.12

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Solution

The fourth proportional to 137,574.18, 206,361.27 and 90,816.12 is: 136,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,574.18 : 206,361.27 = 90,816.12 : x
  2. Step 2: Convert to fraction form
    137,574.18/206,361.27 = 90,816.12/x
  3. Step 3: Cross multiply
    137,574.18x = 206,361.27 × 90,816.12
  4. Step 4: Simplify right side
    137,574.18x = 18,740,929,859.67
  5. Step 5: Solve for x
    x = 18,740,929,859.67/137,574.18
  6. Step 6: Final answer
    x = 136,224.18

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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.