Home / 106,751.10-147,327.94-61,431.06

Finding the Fourth Proportional to 106,751.10, 147,327.94 and 61,431.06

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Solution

The fourth proportional to 106,751.10, 147,327.94 and 61,431.06 is: 84,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,751.10 : 147,327.94 = 61,431.06 : x
  2. Step 2: Convert to fraction form
    106,751.10/147,327.94 = 61,431.06/x
  3. Step 3: Cross multiply
    106,751.10x = 147,327.94 × 61,431.06
  4. Step 4: Simplify right side
    106,751.10x = 9,050,511,521.82
  5. Step 5: Solve for x
    x = 9,050,511,521.82/106,751.10
  6. Step 6: Final answer
    x = 84,781.44

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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.