Home / 120,529.50-180,558.90-57,259.56

Finding the Fourth Proportional to 120,529.50, 180,558.90 and 57,259.56

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Solution

The fourth proportional to 120,529.50, 180,558.90 and 57,259.56 is: 85,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,529.50 : 180,558.90 = 57,259.56 : x
  2. Step 2: Convert to fraction form
    120,529.50/180,558.90 = 57,259.56/x
  3. Step 3: Cross multiply
    120,529.50x = 180,558.90 × 57,259.56
  4. Step 4: Simplify right side
    120,529.50x = 10,338,723,168.08
  5. Step 5: Solve for x
    x = 10,338,723,168.08/120,529.50
  6. Step 6: Final answer
    x = 85,777.53

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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.