Home / 106,223.81-159,288.02-31,317.64

Finding the Fourth Proportional to 106,223.81, 159,288.02 and 31,317.64

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Solution

The fourth proportional to 106,223.81, 159,288.02 and 31,317.64 is: 46,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,223.81 : 159,288.02 = 31,317.64 : x
  2. Step 2: Convert to fraction form
    106,223.81/159,288.02 = 31,317.64/x
  3. Step 3: Cross multiply
    106,223.81x = 159,288.02 × 31,317.64
  4. Step 4: Simplify right side
    106,223.81x = 4,988,524,429.31
  5. Step 5: Solve for x
    x = 4,988,524,429.31/106,223.81
  6. Step 6: Final answer
    x = 46,962.40

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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.