Home / 154,510.77-213,131.75-90,796.17

Finding the Fourth Proportional to 154,510.77, 213,131.75 and 90,796.17

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Solution

The fourth proportional to 154,510.77, 213,131.75 and 90,796.17 is: 125,244.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,510.77 : 213,131.75 = 90,796.17 : x
  2. Step 2: Convert to fraction form
    154,510.77/213,131.75 = 90,796.17/x
  3. Step 3: Cross multiply
    154,510.77x = 213,131.75 × 90,796.17
  4. Step 4: Simplify right side
    154,510.77x = 19,351,546,151.42
  5. Step 5: Solve for x
    x = 19,351,546,151.42/154,510.77
  6. Step 6: Final answer
    x = 125,244.00

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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.