Home / 154,285.19-231,344.56-69,999.35

Finding the Fourth Proportional to 154,285.19, 231,344.56 and 69,999.35

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Solution

The fourth proportional to 154,285.19, 231,344.56 and 69,999.35 is: 104,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,285.19 : 231,344.56 = 69,999.35 : x
  2. Step 2: Convert to fraction form
    154,285.19/231,344.56 = 69,999.35/x
  3. Step 3: Cross multiply
    154,285.19x = 231,344.56 × 69,999.35
  4. Step 4: Simplify right side
    154,285.19x = 16,193,969,229.40
  5. Step 5: Solve for x
    x = 16,193,969,229.40/154,285.19
  6. Step 6: Final answer
    x = 104,961.27

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1.5x scale

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.