Home / 128,700.48-193,003.32-44,439.12

Finding the Fourth Proportional to 128,700.48, 193,003.32 and 44,439.12

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Solution

The fourth proportional to 128,700.48, 193,003.32 and 44,439.12 is: 66,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,700.48 : 193,003.32 = 44,439.12 : x
  2. Step 2: Convert to fraction form
    128,700.48/193,003.32 = 44,439.12/x
  3. Step 3: Cross multiply
    128,700.48x = 193,003.32 × 44,439.12
  4. Step 4: Simplify right side
    128,700.48x = 8,576,897,697.88
  5. Step 5: Solve for x
    x = 8,576,897,697.88/128,700.48
  6. Step 6: Final answer
    x = 66,642.31

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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.