Home / 124,781.36-187,187.49-48,870.05

Finding the Fourth Proportional to 124,781.36, 187,187.49 and 48,870.05

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Solution

The fourth proportional to 124,781.36, 187,187.49 and 48,870.05 is: 73,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,781.36 : 187,187.49 = 48,870.05 : x
  2. Step 2: Convert to fraction form
    124,781.36/187,187.49 = 48,870.05/x
  3. Step 3: Cross multiply
    124,781.36x = 187,187.49 × 48,870.05
  4. Step 4: Simplify right side
    124,781.36x = 9,147,861,059.74
  5. Step 5: Solve for x
    x = 9,147,861,059.74/124,781.36
  6. Step 6: Final answer
    x = 73,311.12

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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.