Home / 158,140.05-218,268.30-109,150.45

Finding the Fourth Proportional to 158,140.05, 218,268.30 and 109,150.45

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Solution

The fourth proportional to 158,140.05, 218,268.30 and 109,150.45 is: 150,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,140.05 : 218,268.30 = 109,150.45 : x
  2. Step 2: Convert to fraction form
    158,140.05/218,268.30 = 109,150.45/x
  3. Step 3: Cross multiply
    158,140.05x = 218,268.30 × 109,150.45
  4. Step 4: Simplify right side
    158,140.05x = 23,824,082,415.36
  5. Step 5: Solve for x
    x = 23,824,082,415.36/158,140.05
  6. Step 6: Final answer
    x = 150,651.80

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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.