Home / 154,055-230,415.42-90,724.16

Finding the Fourth Proportional to 154,055, 230,415.42 and 90,724.16

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Solution

The fourth proportional to 154,055, 230,415.42 and 90,724.16 is: 135,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,055 : 230,415.42 = 90,724.16 : x
  2. Step 2: Convert to fraction form
    154,055/230,415.42 = 90,724.16/x
  3. Step 3: Cross multiply
    154,055x = 230,415.42 × 90,724.16
  4. Step 4: Simplify right side
    154,055x = 20,904,245,430.55
  5. Step 5: Solve for x
    x = 20,904,245,430.55/154,055
  6. Step 6: Final answer
    x = 135,693.39

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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.