Home / 187,243.52-280,936.21-112,415.93

Finding the Fourth Proportional to 187,243.52, 280,936.21 and 112,415.93

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Solution

The fourth proportional to 187,243.52, 280,936.21 and 112,415.93 is: 168,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,243.52 : 280,936.21 = 112,415.93 : x
  2. Step 2: Convert to fraction form
    187,243.52/280,936.21 = 112,415.93/x
  3. Step 3: Cross multiply
    187,243.52x = 280,936.21 × 112,415.93
  4. Step 4: Simplify right side
    187,243.52x = 31,581,705,317.83
  5. Step 5: Solve for x
    x = 31,581,705,317.83/187,243.52
  6. Step 6: Final answer
    x = 168,666.48

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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.