Home / 423,749.61-635,625.45-103,902.89

Finding the Fourth Proportional to 423,749.61, 635,625.45 and 103,902.89

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Solution

The fourth proportional to 423,749.61, 635,625.45 and 103,902.89 is: 155,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,749.61 : 635,625.45 = 103,902.89 : x
  2. Step 2: Convert to fraction form
    423,749.61/635,625.45 = 103,902.89/x
  3. Step 3: Cross multiply
    423,749.61x = 635,625.45 × 103,902.89
  4. Step 4: Simplify right side
    423,749.61x = 66,043,318,034.42
  5. Step 5: Solve for x
    x = 66,043,318,034.42/423,749.61
  6. Step 6: Final answer
    x = 155,854.58

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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.