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Finding the Fourth Proportional to 134,384.79, 185,471.42 and 80,699.41

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Solution

The fourth proportional to 134,384.79, 185,471.42 and 80,699.41 is: 111,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,384.79 : 185,471.42 = 80,699.41 : x
  2. Step 2: Convert to fraction form
    134,384.79/185,471.42 = 80,699.41/x
  3. Step 3: Cross multiply
    134,384.79x = 185,471.42 × 80,699.41
  4. Step 4: Simplify right side
    134,384.79x = 14,967,433,238.51
  5. Step 5: Solve for x
    x = 14,967,433,238.51/134,384.79
  6. Step 6: Final answer
    x = 111,377.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.