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Finding the Fourth Proportional to 101,586.76, 140,259 and 63,361.24

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Solution

The fourth proportional to 101,586.76, 140,259 and 63,361.24 is: 87,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,586.76 : 140,259 = 63,361.24 : x
  2. Step 2: Convert to fraction form
    101,586.76/140,259 = 63,361.24/x
  3. Step 3: Cross multiply
    101,586.76x = 140,259 × 63,361.24
  4. Step 4: Simplify right side
    101,586.76x = 8,886,984,161.16
  5. Step 5: Solve for x
    x = 8,886,984,161.16/101,586.76
  6. Step 6: Final answer
    x = 87,481.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.