Home / 187,815.51-281,719.15-45,661.55

Finding the Fourth Proportional to 187,815.51, 281,719.15 and 45,661.55

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Solution

The fourth proportional to 187,815.51, 281,719.15 and 45,661.55 is: 68,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,815.51 : 281,719.15 = 45,661.55 : x
  2. Step 2: Convert to fraction form
    187,815.51/281,719.15 = 45,661.55/x
  3. Step 3: Cross multiply
    187,815.51x = 281,719.15 × 45,661.55
  4. Step 4: Simplify right side
    187,815.51x = 12,863,731,530.93
  5. Step 5: Solve for x
    x = 12,863,731,530.93/187,815.51
  6. Step 6: Final answer
    x = 68,491.32

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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.