Home / 128,948.81-193,414.07-34,176.89

Finding the Fourth Proportional to 128,948.81, 193,414.07 and 34,176.89

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Solution

The fourth proportional to 128,948.81, 193,414.07 and 34,176.89 is: 51,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,948.81 : 193,414.07 = 34,176.89 : x
  2. Step 2: Convert to fraction form
    128,948.81/193,414.07 = 34,176.89/x
  3. Step 3: Cross multiply
    128,948.81x = 193,414.07 × 34,176.89
  4. Step 4: Simplify right side
    128,948.81x = 6,610,290,783.14
  5. Step 5: Solve for x
    x = 6,610,290,783.14/128,948.81
  6. Step 6: Final answer
    x = 51,262.91

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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.