Home / 187,081.02-280,612.99-68,743.67

Finding the Fourth Proportional to 187,081.02, 280,612.99 and 68,743.67

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Solution

The fourth proportional to 187,081.02, 280,612.99 and 68,743.67 is: 103,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,081.02 : 280,612.99 = 68,743.67 : x
  2. Step 2: Convert to fraction form
    187,081.02/280,612.99 = 68,743.67/x
  3. Step 3: Cross multiply
    187,081.02x = 280,612.99 × 68,743.67
  4. Step 4: Simplify right side
    187,081.02x = 19,290,366,782.27
  5. Step 5: Solve for x
    x = 19,290,366,782.27/187,081.02
  6. Step 6: Final answer
    x = 103,112.37

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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.