Home / 187,829.76-281,640.96-77,099.52

Finding the Fourth Proportional to 187,829.76, 281,640.96 and 77,099.52

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Solution

The fourth proportional to 187,829.76, 281,640.96 and 77,099.52 is: 115,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,829.76 : 281,640.96 = 77,099.52 : x
  2. Step 2: Convert to fraction form
    187,829.76/281,640.96 = 77,099.52/x
  3. Step 3: Cross multiply
    187,829.76x = 281,640.96 × 77,099.52
  4. Step 4: Simplify right side
    187,829.76x = 21,714,382,828.34
  5. Step 5: Solve for x
    x = 21,714,382,828.34/187,829.76
  6. Step 6: Final answer
    x = 115,606.72

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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.