Home / 137,549.06-206,323.59-90,791.00

Finding the Fourth Proportional to 137,549.06, 206,323.59 and 90,791.00

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Solution

The fourth proportional to 137,549.06, 206,323.59 and 90,791.00 is: 136,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,549.06 : 206,323.59 = 90,791.00 : x
  2. Step 2: Convert to fraction form
    137,549.06/206,323.59 = 90,791.00/x
  3. Step 3: Cross multiply
    137,549.06x = 206,323.59 × 90,791.00
  4. Step 4: Simplify right side
    137,549.06x = 18,732,324,028.07
  5. Step 5: Solve for x
    x = 18,732,324,028.07/137,549.06
  6. Step 6: Final answer
    x = 136,186.50

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1.5x scale

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.