Home / 106,962.11-147,640.55-61,670.33

Finding the Fourth Proportional to 106,962.11, 147,640.55 and 61,670.33

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Solution

The fourth proportional to 106,962.11, 147,640.55 and 61,670.33 is: 85,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,962.11 : 147,640.55 = 61,670.33 : x
  2. Step 2: Convert to fraction form
    106,962.11/147,640.55 = 61,670.33/x
  3. Step 3: Cross multiply
    106,962.11x = 147,640.55 × 61,670.33
  4. Step 4: Simplify right side
    106,962.11x = 9,105,040,393.33
  5. Step 5: Solve for x
    x = 9,105,040,393.33/106,962.11
  6. Step 6: Final answer
    x = 85,123.98

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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.