Home / 120,529.59-180,795.93-83,079.61

Finding the Fourth Proportional to 120,529.59, 180,795.93 and 83,079.61

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Solution

The fourth proportional to 120,529.59, 180,795.93 and 83,079.61 is: 124,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,529.59 : 180,795.93 = 83,079.61 : x
  2. Step 2: Convert to fraction form
    120,529.59/180,795.93 = 83,079.61/x
  3. Step 3: Cross multiply
    120,529.59x = 180,795.93 × 83,079.61
  4. Step 4: Simplify right side
    120,529.59x = 15,020,456,074.75
  5. Step 5: Solve for x
    x = 15,020,456,074.75/120,529.59
  6. Step 6: Final answer
    x = 124,620.48

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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.