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Finding the Fourth Proportional to 134,488.52, 185,538.53 and 80,029.88

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Solution

The fourth proportional to 134,488.52, 185,538.53 and 80,029.88 is: 110,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,488.52 : 185,538.53 = 80,029.88 : x
  2. Step 2: Convert to fraction form
    134,488.52/185,538.53 = 80,029.88/x
  3. Step 3: Cross multiply
    134,488.52x = 185,538.53 × 80,029.88
  4. Step 4: Simplify right side
    134,488.52x = 14,848,624,963.43
  5. Step 5: Solve for x
    x = 14,848,624,963.43/134,488.52
  6. Step 6: Final answer
    x = 110,408.13

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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.