Home / 128,669.78-193,030.46-44,433.03

Finding the Fourth Proportional to 128,669.78, 193,030.46 and 44,433.03

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Solution

The fourth proportional to 128,669.78, 193,030.46 and 44,433.03 is: 66,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,669.78 : 193,030.46 = 44,433.03 : x
  2. Step 2: Convert to fraction form
    128,669.78/193,030.46 = 44,433.03/x
  3. Step 3: Cross multiply
    128,669.78x = 193,030.46 × 44,433.03
  4. Step 4: Simplify right side
    128,669.78x = 8,576,927,997.93
  5. Step 5: Solve for x
    x = 8,576,927,997.93/128,669.78
  6. Step 6: Final answer
    x = 66,658.45

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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.