Home / 213,015.06-319,530.69-70,873.02

Finding the Fourth Proportional to 213,015.06, 319,530.69 and 70,873.02

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Solution

The fourth proportional to 213,015.06, 319,530.69 and 70,873.02 is: 106,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,015.06 : 319,530.69 = 70,873.02 : x
  2. Step 2: Convert to fraction form
    213,015.06/319,530.69 = 70,873.02/x
  3. Step 3: Cross multiply
    213,015.06x = 319,530.69 × 70,873.02
  4. Step 4: Simplify right side
    213,015.06x = 22,646,104,982.98
  5. Step 5: Solve for x
    x = 22,646,104,982.98/213,015.06
  6. Step 6: Final answer
    x = 106,312.22

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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.