Home / 106,960.91-147,621.50-61,630.20

Finding the Fourth Proportional to 106,960.91, 147,621.50 and 61,630.20

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Solution

The fourth proportional to 106,960.91, 147,621.50 and 61,630.20 is: 85,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,960.91 : 147,621.50 = 61,630.20 : x
  2. Step 2: Convert to fraction form
    106,960.91/147,621.50 = 61,630.20/x
  3. Step 3: Cross multiply
    106,960.91x = 147,621.50 × 61,630.20
  4. Step 4: Simplify right side
    106,960.91x = 9,097,942,569.30
  5. Step 5: Solve for x
    x = 9,097,942,569.30/106,960.91
  6. Step 6: Final answer
    x = 85,058.57

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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.