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Finding the Fourth Proportional to 187,536, 281,303.68 and 76,727.68

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Solution

The fourth proportional to 187,536, 281,303.68 and 76,727.68 is: 115,091.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,536 : 281,303.68 = 76,727.68 : x
  2. Step 2: Convert to fraction form
    187,536/281,303.68 = 76,727.68/x
  3. Step 3: Cross multiply
    187,536x = 281,303.68 × 76,727.68
  4. Step 4: Simplify right side
    187,536x = 21,583,778,741.86
  5. Step 5: Solve for x
    x = 21,583,778,741.86/187,536
  6. Step 6: Final answer
    x = 115,091.39

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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.