Home / 128,435.76-192,654.18-34,941.42

Finding the Fourth Proportional to 128,435.76, 192,654.18 and 34,941.42

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Solution

The fourth proportional to 128,435.76, 192,654.18 and 34,941.42 is: 52,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,435.76 : 192,654.18 = 34,941.42 : x
  2. Step 2: Convert to fraction form
    128,435.76/192,654.18 = 34,941.42/x
  3. Step 3: Cross multiply
    128,435.76x = 192,654.18 × 34,941.42
  4. Step 4: Simplify right side
    128,435.76x = 6,731,610,618.14
  5. Step 5: Solve for x
    x = 6,731,610,618.14/128,435.76
  6. Step 6: Final answer
    x = 52,412.28

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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.