Home / 154,450.80-231,427.80-87,692.40

Finding the Fourth Proportional to 154,450.80, 231,427.80 and 87,692.40

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Solution

The fourth proportional to 154,450.80, 231,427.80 and 87,692.40 is: 131,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,450.80 : 231,427.80 = 87,692.40 : x
  2. Step 2: Convert to fraction form
    154,450.80/231,427.80 = 87,692.40/x
  3. Step 3: Cross multiply
    154,450.80x = 231,427.80 × 87,692.40
  4. Step 4: Simplify right side
    154,450.80x = 20,294,459,208.72
  5. Step 5: Solve for x
    x = 20,294,459,208.72/154,450.80
  6. Step 6: Final answer
    x = 131,397.57

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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.