Home / 106,219.77-159,292.53-31,320.03

Finding the Fourth Proportional to 106,219.77, 159,292.53 and 31,320.03

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Solution

The fourth proportional to 106,219.77, 159,292.53 and 31,320.03 is: 46,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,219.77 : 159,292.53 = 31,320.03 : x
  2. Step 2: Convert to fraction form
    106,219.77/159,292.53 = 31,320.03/x
  3. Step 3: Cross multiply
    106,219.77x = 159,292.53 × 31,320.03
  4. Step 4: Simplify right side
    106,219.77x = 4,989,046,818.38
  5. Step 5: Solve for x
    x = 4,989,046,818.38/106,219.77
  6. Step 6: Final answer
    x = 46,969.10

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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.