Home / 102,736.98-141,783.57-57,415.14

Finding the Fourth Proportional to 102,736.98, 141,783.57 and 57,415.14

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Solution

The fourth proportional to 102,736.98, 141,783.57 and 57,415.14 is: 79,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,736.98 : 141,783.57 = 57,415.14 : x
  2. Step 2: Convert to fraction form
    102,736.98/141,783.57 = 57,415.14/x
  3. Step 3: Cross multiply
    102,736.98x = 141,783.57 × 57,415.14
  4. Step 4: Simplify right side
    102,736.98x = 8,140,523,521.25
  5. Step 5: Solve for x
    x = 8,140,523,521.25/102,736.98
  6. Step 6: Final answer
    x = 79,236.55

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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.