Home / 106,080.28-159,111.96-61,678.72

Finding the Fourth Proportional to 106,080.28, 159,111.96 and 61,678.72

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Solution

The fourth proportional to 106,080.28, 159,111.96 and 61,678.72 is: 92,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,080.28 : 159,111.96 = 61,678.72 : x
  2. Step 2: Convert to fraction form
    106,080.28/159,111.96 = 61,678.72/x
  3. Step 3: Cross multiply
    106,080.28x = 159,111.96 × 61,678.72
  4. Step 4: Simplify right side
    106,080.28x = 9,813,822,029.49
  5. Step 5: Solve for x
    x = 9,813,822,029.49/106,080.28
  6. Step 6: Final answer
    x = 92,513.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.