Home / 106,639.56-147,145.68-61,308.72

Finding the Fourth Proportional to 106,639.56, 147,145.68 and 61,308.72

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Solution

The fourth proportional to 106,639.56, 147,145.68 and 61,308.72 is: 84,596.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,639.56 : 147,145.68 = 61,308.72 : x
  2. Step 2: Convert to fraction form
    106,639.56/147,145.68 = 61,308.72/x
  3. Step 3: Cross multiply
    106,639.56x = 147,145.68 × 61,308.72
  4. Step 4: Simplify right side
    106,639.56x = 9,021,313,294.33
  5. Step 5: Solve for x
    x = 9,021,313,294.33/106,639.56
  6. Step 6: Final answer
    x = 84,596.31

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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.