Home / 129,010.80-193,516.20-120,153.45

Finding the Fourth Proportional to 129,010.80, 193,516.20 and 120,153.45

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Solution

The fourth proportional to 129,010.80, 193,516.20 and 120,153.45 is: 180,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,010.80 : 193,516.20 = 120,153.45 : x
  2. Step 2: Convert to fraction form
    129,010.80/193,516.20 = 120,153.45/x
  3. Step 3: Cross multiply
    129,010.80x = 193,516.20 × 120,153.45
  4. Step 4: Simplify right side
    129,010.80x = 23,251,639,060.89
  5. Step 5: Solve for x
    x = 23,251,639,060.89/129,010.80
  6. Step 6: Final answer
    x = 180,230.18

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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.