Home / 158,039.04-218,114.37-90,080.43

Finding the Fourth Proportional to 158,039.04, 218,114.37 and 90,080.43

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Solution

The fourth proportional to 158,039.04, 218,114.37 and 90,080.43 is: 124,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,039.04 : 218,114.37 = 90,080.43 : x
  2. Step 2: Convert to fraction form
    158,039.04/218,114.37 = 90,080.43/x
  3. Step 3: Cross multiply
    158,039.04x = 218,114.37 × 90,080.43
  4. Step 4: Simplify right side
    158,039.04x = 19,647,836,238.78
  5. Step 5: Solve for x
    x = 19,647,836,238.78/158,039.04
  6. Step 6: Final answer
    x = 124,322.68

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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.