Home / 128,927.02-193,389.96-40,180.60

Finding the Fourth Proportional to 128,927.02, 193,389.96 and 40,180.60

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Solution

The fourth proportional to 128,927.02, 193,389.96 and 40,180.60 is: 60,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,927.02 : 193,389.96 = 40,180.60 : x
  2. Step 2: Convert to fraction form
    128,927.02/193,389.96 = 40,180.60/x
  3. Step 3: Cross multiply
    128,927.02x = 193,389.96 × 40,180.60
  4. Step 4: Simplify right side
    128,927.02x = 7,770,524,626.78
  5. Step 5: Solve for x
    x = 7,770,524,626.78/128,927.02
  6. Step 6: Final answer
    x = 60,270.72

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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.