Home / 154,288.90-231,451.88-54,428.51

Finding the Fourth Proportional to 154,288.90, 231,451.88 and 54,428.51

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Solution

The fourth proportional to 154,288.90, 231,451.88 and 54,428.51 is: 81,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,288.90 : 231,451.88 = 54,428.51 : x
  2. Step 2: Convert to fraction form
    154,288.90/231,451.88 = 54,428.51/x
  3. Step 3: Cross multiply
    154,288.90x = 231,451.88 × 54,428.51
  4. Step 4: Simplify right side
    154,288.90x = 12,597,580,275.83
  5. Step 5: Solve for x
    x = 12,597,580,275.83/154,288.90
  6. Step 6: Final answer
    x = 81,649.30

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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.