Home / 140,270.73-193,570.52-76,608.78

Finding the Fourth Proportional to 140,270.73, 193,570.52 and 76,608.78

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Solution

The fourth proportional to 140,270.73, 193,570.52 and 76,608.78 is: 105,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,270.73 : 193,570.52 = 76,608.78 : x
  2. Step 2: Convert to fraction form
    140,270.73/193,570.52 = 76,608.78/x
  3. Step 3: Cross multiply
    140,270.73x = 193,570.52 × 76,608.78
  4. Step 4: Simplify right side
    140,270.73x = 14,829,201,381.17
  5. Step 5: Solve for x
    x = 14,829,201,381.17/140,270.73
  6. Step 6: Final answer
    x = 105,718.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.