Home / 106,205.52-159,308.64-31,326.60

Finding the Fourth Proportional to 106,205.52, 159,308.64 and 31,326.60

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Solution

The fourth proportional to 106,205.52, 159,308.64 and 31,326.60 is: 46,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,205.52 : 159,308.64 = 31,326.60 : x
  2. Step 2: Convert to fraction form
    106,205.52/159,308.64 = 31,326.60/x
  3. Step 3: Cross multiply
    106,205.52x = 159,308.64 × 31,326.60
  4. Step 4: Simplify right side
    106,205.52x = 4,990,598,041.82
  5. Step 5: Solve for x
    x = 4,990,598,041.82/106,205.52
  6. Step 6: Final answer
    x = 46,990.01

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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.