Home / 135,414.06-186,869.10-74,983.41

Finding the Fourth Proportional to 135,414.06, 186,869.10 and 74,983.41

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Solution

The fourth proportional to 135,414.06, 186,869.10 and 74,983.41 is: 103,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,414.06 : 186,869.10 = 74,983.41 : x
  2. Step 2: Convert to fraction form
    135,414.06/186,869.10 = 74,983.41/x
  3. Step 3: Cross multiply
    135,414.06x = 186,869.10 × 74,983.41
  4. Step 4: Simplify right side
    135,414.06x = 14,012,082,341.63
  5. Step 5: Solve for x
    x = 14,012,082,341.63/135,414.06
  6. Step 6: Final answer
    x = 103,475.83

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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.