Home / 103,112.11-142,282.06-62,811.24

Finding the Fourth Proportional to 103,112.11, 142,282.06 and 62,811.24

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Solution

The fourth proportional to 103,112.11, 142,282.06 and 62,811.24 is: 86,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,112.11 : 142,282.06 = 62,811.24 : x
  2. Step 2: Convert to fraction form
    103,112.11/142,282.06 = 62,811.24/x
  3. Step 3: Cross multiply
    103,112.11x = 142,282.06 × 62,811.24
  4. Step 4: Simplify right side
    103,112.11x = 8,936,912,618.35
  5. Step 5: Solve for x
    x = 8,936,912,618.35/103,112.11
  6. Step 6: Final answer
    x = 86,671.80

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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.