Home / 189,989.25-285,062.33-83,317.98

Finding the Fourth Proportional to 189,989.25, 285,062.33 and 83,317.98

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Solution

The fourth proportional to 189,989.25, 285,062.33 and 83,317.98 is: 125,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,989.25 : 285,062.33 = 83,317.98 : x
  2. Step 2: Convert to fraction form
    189,989.25/285,062.33 = 83,317.98/x
  3. Step 3: Cross multiply
    189,989.25x = 285,062.33 × 83,317.98
  4. Step 4: Simplify right side
    189,989.25x = 23,750,817,509.69
  5. Step 5: Solve for x
    x = 23,750,817,509.69/189,989.25
  6. Step 6: Final answer
    x = 125,011.38

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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.