Home / 149,463.24-206,217.54-85,777.80

Finding the Fourth Proportional to 149,463.24, 206,217.54 and 85,777.80

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Solution

The fourth proportional to 149,463.24, 206,217.54 and 85,777.80 is: 118,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,463.24 : 206,217.54 = 85,777.80 : x
  2. Step 2: Convert to fraction form
    149,463.24/206,217.54 = 85,777.80/x
  3. Step 3: Cross multiply
    149,463.24x = 206,217.54 × 85,777.80
  4. Step 4: Simplify right side
    149,463.24x = 17,688,886,902.61
  5. Step 5: Solve for x
    x = 17,688,886,902.61/149,463.24
  6. Step 6: Final answer
    x = 118,349.41

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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.