Home / 76,355.02-113,912.56-72,221.59

Finding the Fourth Proportional to 76,355.02, 113,912.56 and 72,221.59

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Solution

The fourth proportional to 76,355.02, 113,912.56 and 72,221.59 is: 107,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,355.02 : 113,912.56 = 72,221.59 : x
  2. Step 2: Convert to fraction form
    76,355.02/113,912.56 = 72,221.59/x
  3. Step 3: Cross multiply
    76,355.02x = 113,912.56 × 72,221.59
  4. Step 4: Simplify right side
    76,355.02x = 8,226,946,436.84
  5. Step 5: Solve for x
    x = 8,226,946,436.84/76,355.02
  6. Step 6: Final answer
    x = 107,745.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.