Home / 151,771.30-209,471.81-90,521.42

Finding the Fourth Proportional to 151,771.30, 209,471.81 and 90,521.42

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Solution

The fourth proportional to 151,771.30, 209,471.81 and 90,521.42 is: 124,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,771.30 : 209,471.81 = 90,521.42 : x
  2. Step 2: Convert to fraction form
    151,771.30/209,471.81 = 90,521.42/x
  3. Step 3: Cross multiply
    151,771.30x = 209,471.81 × 90,521.42
  4. Step 4: Simplify right side
    151,771.30x = 18,961,684,530.66
  5. Step 5: Solve for x
    x = 18,961,684,530.66/151,771.30
  6. Step 6: Final answer
    x = 124,935.90

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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.