Home / 102,968.25-142,114.57-74,755.95

Finding the Fourth Proportional to 102,968.25, 142,114.57 and 74,755.95

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Solution

The fourth proportional to 102,968.25, 142,114.57 and 74,755.95 is: 103,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,968.25 : 142,114.57 = 74,755.95 : x
  2. Step 2: Convert to fraction form
    102,968.25/142,114.57 = 74,755.95/x
  3. Step 3: Cross multiply
    102,968.25x = 142,114.57 × 74,755.95
  4. Step 4: Simplify right side
    102,968.25x = 10,623,908,969.37
  5. Step 5: Solve for x
    x = 10,623,908,969.37/102,968.25
  6. Step 6: Final answer
    x = 103,176.56

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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.