Home / 154,431.20-231,646.80-148,526.30

Finding the Fourth Proportional to 154,431.20, 231,646.80 and 148,526.30

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Solution

The fourth proportional to 154,431.20, 231,646.80 and 148,526.30 is: 222,789.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,431.20 : 231,646.80 = 148,526.30 : x
  2. Step 2: Convert to fraction form
    154,431.20/231,646.80 = 148,526.30/x
  3. Step 3: Cross multiply
    154,431.20x = 231,646.80 × 148,526.30
  4. Step 4: Simplify right side
    154,431.20x = 34,405,642,110.84
  5. Step 5: Solve for x
    x = 34,405,642,110.84/154,431.20
  6. Step 6: Final answer
    x = 222,789.45

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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.