Home / 106,836.42-147,428.28-58,428.72

Finding the Fourth Proportional to 106,836.42, 147,428.28 and 58,428.72

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Solution

The fourth proportional to 106,836.42, 147,428.28 and 58,428.72 is: 80,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,836.42 : 147,428.28 = 58,428.72 : x
  2. Step 2: Convert to fraction form
    106,836.42/147,428.28 = 58,428.72/x
  3. Step 3: Cross multiply
    106,836.42x = 147,428.28 × 58,428.72
  4. Step 4: Simplify right side
    106,836.42x = 8,614,045,692.20
  5. Step 5: Solve for x
    x = 8,614,045,692.20/106,836.42
  6. Step 6: Final answer
    x = 80,628.36

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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.