Home / 128,724.48-193,039.36-44,463.20

Finding the Fourth Proportional to 128,724.48, 193,039.36 and 44,463.20

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Solution

The fourth proportional to 128,724.48, 193,039.36 and 44,463.20 is: 66,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,724.48 : 193,039.36 = 44,463.20 : x
  2. Step 2: Convert to fraction form
    128,724.48/193,039.36 = 44,463.20/x
  3. Step 3: Cross multiply
    128,724.48x = 193,039.36 × 44,463.20
  4. Step 4: Simplify right side
    128,724.48x = 8,583,147,671.55
  5. Step 5: Solve for x
    x = 8,583,147,671.55/128,724.48
  6. Step 6: Final answer
    x = 66,678.44

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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.