Home / 97,817.31-146,705.86-61,782.78

Finding the Fourth Proportional to 97,817.31, 146,705.86 and 61,782.78

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Solution

The fourth proportional to 97,817.31, 146,705.86 and 61,782.78 is: 92,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,817.31 : 146,705.86 = 61,782.78 : x
  2. Step 2: Convert to fraction form
    97,817.31/146,705.86 = 61,782.78/x
  3. Step 3: Cross multiply
    97,817.31x = 146,705.86 × 61,782.78
  4. Step 4: Simplify right side
    97,817.31x = 9,063,895,873.09
  5. Step 5: Solve for x
    x = 9,063,895,873.09/97,817.31
  6. Step 6: Final answer
    x = 92,661.47

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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.