Home / 154,145.98-231,223.08-54,283.48

Finding the Fourth Proportional to 154,145.98, 231,223.08 and 54,283.48

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Solution

The fourth proportional to 154,145.98, 231,223.08 and 54,283.48 is: 81,426.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,145.98 : 231,223.08 = 54,283.48 : x
  2. Step 2: Convert to fraction form
    154,145.98/231,223.08 = 54,283.48/x
  3. Step 3: Cross multiply
    154,145.98x = 231,223.08 × 54,283.48
  4. Step 4: Simplify right side
    154,145.98x = 12,551,593,438.72
  5. Step 5: Solve for x
    x = 12,551,593,438.72/154,145.98
  6. Step 6: Final answer
    x = 81,426.67

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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.