Home / 106,945.65-147,588.48-61,620.12

Finding the Fourth Proportional to 106,945.65, 147,588.48 and 61,620.12

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Solution

The fourth proportional to 106,945.65, 147,588.48 and 61,620.12 is: 85,037.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,945.65 : 147,588.48 = 61,620.12 : x
  2. Step 2: Convert to fraction form
    106,945.65/147,588.48 = 61,620.12/x
  3. Step 3: Cross multiply
    106,945.65x = 147,588.48 × 61,620.12
  4. Step 4: Simplify right side
    106,945.65x = 9,094,419,848.22
  5. Step 5: Solve for x
    x = 9,094,419,848.22/106,945.65
  6. Step 6: Final answer
    x = 85,037.77

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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.