Home / 147,218.35-203,162.31-83,557.21

Finding the Fourth Proportional to 147,218.35, 203,162.31 and 83,557.21

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Solution

The fourth proportional to 147,218.35, 203,162.31 and 83,557.21 is: 115,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,218.35 : 203,162.31 = 83,557.21 : x
  2. Step 2: Convert to fraction form
    147,218.35/203,162.31 = 83,557.21/x
  3. Step 3: Cross multiply
    147,218.35x = 203,162.31 × 83,557.21
  4. Step 4: Simplify right side
    147,218.35x = 16,975,675,800.76
  5. Step 5: Solve for x
    x = 16,975,675,800.76/147,218.35
  6. Step 6: Final answer
    x = 115,309.51

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1.5x scale

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.