Home / 187,143.48-280,716.44-74,833.16

Finding the Fourth Proportional to 187,143.48, 280,716.44 and 74,833.16

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Solution

The fourth proportional to 187,143.48, 280,716.44 and 74,833.16 is: 112,250.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,143.48 : 280,716.44 = 74,833.16 : x
  2. Step 2: Convert to fraction form
    187,143.48/280,716.44 = 74,833.16/x
  3. Step 3: Cross multiply
    187,143.48x = 280,716.44 × 74,833.16
  4. Step 4: Simplify right side
    187,143.48x = 21,006,896,491.40
  5. Step 5: Solve for x
    x = 21,006,896,491.40/187,143.48
  6. Step 6: Final answer
    x = 112,250.22

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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.