Home / 154,625.66-213,379.79-90,967.55

Finding the Fourth Proportional to 154,625.66, 213,379.79 and 90,967.55

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Solution

The fourth proportional to 154,625.66, 213,379.79 and 90,967.55 is: 125,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,625.66 : 213,379.79 = 90,967.55 : x
  2. Step 2: Convert to fraction form
    154,625.66/213,379.79 = 90,967.55/x
  3. Step 3: Cross multiply
    154,625.66x = 213,379.79 × 90,967.55
  4. Step 4: Simplify right side
    154,625.66x = 19,410,635,194.08
  5. Step 5: Solve for x
    x = 19,410,635,194.08/154,625.66
  6. Step 6: Final answer
    x = 125,533.08

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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.