Home / 128,369.37-192,534.60-49,472.13

Finding the Fourth Proportional to 128,369.37, 192,534.60 and 49,472.13

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Solution

The fourth proportional to 128,369.37, 192,534.60 and 49,472.13 is: 74,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,369.37 : 192,534.60 = 49,472.13 : x
  2. Step 2: Convert to fraction form
    128,369.37/192,534.60 = 49,472.13/x
  3. Step 3: Cross multiply
    128,369.37x = 192,534.60 × 49,472.13
  4. Step 4: Simplify right side
    128,369.37x = 9,525,096,760.70
  5. Step 5: Solve for x
    x = 9,525,096,760.70/128,369.37
  6. Step 6: Final answer
    x = 74,200.70

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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.