Home / 101,817.20-140,580.60-67,905.76

Finding the Fourth Proportional to 101,817.20, 140,580.60 and 67,905.76

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Solution

The fourth proportional to 101,817.20, 140,580.60 and 67,905.76 is: 93,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,817.20 : 140,580.60 = 67,905.76 : x
  2. Step 2: Convert to fraction form
    101,817.20/140,580.60 = 67,905.76/x
  3. Step 3: Cross multiply
    101,817.20x = 140,580.60 × 67,905.76
  4. Step 4: Simplify right side
    101,817.20x = 9,546,232,484.26
  5. Step 5: Solve for x
    x = 9,546,232,484.26/101,817.20
  6. Step 6: Final answer
    x = 93,758.54

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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.