Home / 123,558.68-185,126.38-67,438.13

Finding the Fourth Proportional to 123,558.68, 185,126.38 and 67,438.13

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Solution

The fourth proportional to 123,558.68, 185,126.38 and 67,438.13 is: 101,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,558.68 : 185,126.38 = 67,438.13 : x
  2. Step 2: Convert to fraction form
    123,558.68/185,126.38 = 67,438.13/x
  3. Step 3: Cross multiply
    123,558.68x = 185,126.38 × 67,438.13
  4. Step 4: Simplify right side
    123,558.68x = 12,484,575,786.64
  5. Step 5: Solve for x
    x = 12,484,575,786.64/123,558.68
  6. Step 6: Final answer
    x = 101,041.68

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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.