Home / 106,428.28-146,892.30-61,137.33

Finding the Fourth Proportional to 106,428.28, 146,892.30 and 61,137.33

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Solution

The fourth proportional to 106,428.28, 146,892.30 and 61,137.33 is: 84,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,428.28 : 146,892.30 = 61,137.33 : x
  2. Step 2: Convert to fraction form
    106,428.28/146,892.30 = 61,137.33/x
  3. Step 3: Cross multiply
    106,428.28x = 146,892.30 × 61,137.33
  4. Step 4: Simplify right side
    106,428.28x = 8,980,602,285.10
  5. Step 5: Solve for x
    x = 8,980,602,285.10/106,428.28
  6. Step 6: Final answer
    x = 84,381.73

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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.