Home / 102,283.92-141,334.88-79,681.28

Finding the Fourth Proportional to 102,283.92, 141,334.88 and 79,681.28

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Solution

The fourth proportional to 102,283.92, 141,334.88 and 79,681.28 is: 110,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,283.92 : 141,334.88 = 79,681.28 : x
  2. Step 2: Convert to fraction form
    102,283.92/141,334.88 = 79,681.28/x
  3. Step 3: Cross multiply
    102,283.92x = 141,334.88 × 79,681.28
  4. Step 4: Simplify right side
    102,283.92x = 11,261,743,041.97
  5. Step 5: Solve for x
    x = 11,261,743,041.97/102,283.92
  6. Step 6: Final answer
    x = 110,102.77

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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.