Home / 101,059.20-151,370.10-54,257.40

Finding the Fourth Proportional to 101,059.20, 151,370.10 and 54,257.40

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Solution

The fourth proportional to 101,059.20, 151,370.10 and 54,257.40 is: 81,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,059.20 : 151,370.10 = 54,257.40 : x
  2. Step 2: Convert to fraction form
    101,059.20/151,370.10 = 54,257.40/x
  3. Step 3: Cross multiply
    101,059.20x = 151,370.10 × 54,257.40
  4. Step 4: Simplify right side
    101,059.20x = 8,212,948,063.74
  5. Step 5: Solve for x
    x = 8,212,948,063.74/101,059.20
  6. Step 6: Final answer
    x = 81,268.68

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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.