Home / 154,511.74-213,231.45-90,855.46

Finding the Fourth Proportional to 154,511.74, 213,231.45 and 90,855.46

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Solution

The fourth proportional to 154,511.74, 213,231.45 and 90,855.46 is: 125,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,511.74 : 213,231.45 = 90,855.46 : x
  2. Step 2: Convert to fraction form
    154,511.74/213,231.45 = 90,855.46/x
  3. Step 3: Cross multiply
    154,511.74x = 213,231.45 × 90,855.46
  4. Step 4: Simplify right side
    154,511.74x = 19,373,241,476.22
  5. Step 5: Solve for x
    x = 19,373,241,476.22/154,511.74
  6. Step 6: Final answer
    x = 125,383.62

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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.