Home / 105,839.92-146,036.28-61,102

Finding the Fourth Proportional to 105,839.92, 146,036.28 and 61,102

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Solution

The fourth proportional to 105,839.92, 146,036.28 and 61,102 is: 84,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,839.92 : 146,036.28 = 61,102 : x
  2. Step 2: Convert to fraction form
    105,839.92/146,036.28 = 61,102/x
  3. Step 3: Cross multiply
    105,839.92x = 146,036.28 × 61,102
  4. Step 4: Simplify right side
    105,839.92x = 8,923,108,780.56
  5. Step 5: Solve for x
    x = 8,923,108,780.56/105,839.92
  6. Step 6: Final answer
    x = 84,307.59

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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.