Home / 97,799.10-146,643.98-45,143.43

Finding the Fourth Proportional to 97,799.10, 146,643.98 and 45,143.43

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Solution

The fourth proportional to 97,799.10, 146,643.98 and 45,143.43 is: 67,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,799.10 : 146,643.98 = 45,143.43 : x
  2. Step 2: Convert to fraction form
    97,799.10/146,643.98 = 45,143.43/x
  3. Step 3: Cross multiply
    97,799.10x = 146,643.98 × 45,143.43
  4. Step 4: Simplify right side
    97,799.10x = 6,620,012,020.33
  5. Step 5: Solve for x
    x = 6,620,012,020.33/97,799.10
  6. Step 6: Final answer
    x = 67,689.91

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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.