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Finding the Fourth Proportional to 134,592.84, 185,738.13 and 78,037.02

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Solution

The fourth proportional to 134,592.84, 185,738.13 and 78,037.02 is: 107,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,592.84 : 185,738.13 = 78,037.02 : x
  2. Step 2: Convert to fraction form
    134,592.84/185,738.13 = 78,037.02/x
  3. Step 3: Cross multiply
    134,592.84x = 185,738.13 × 78,037.02
  4. Step 4: Simplify right side
    134,592.84x = 14,494,450,165.57
  5. Step 5: Solve for x
    x = 14,494,450,165.57/134,592.84
  6. Step 6: Final answer
    x = 107,691.09

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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.