Home / 140,699.60-194,165.40-77,037.36

Finding the Fourth Proportional to 140,699.60, 194,165.40 and 77,037.36

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Solution

The fourth proportional to 140,699.60, 194,165.40 and 77,037.36 is: 106,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,699.60 : 194,165.40 = 77,037.36 : x
  2. Step 2: Convert to fraction form
    140,699.60/194,165.40 = 77,037.36/x
  3. Step 3: Cross multiply
    140,699.60x = 194,165.40 × 77,037.36
  4. Step 4: Simplify right side
    140,699.60x = 14,957,989,819.34
  5. Step 5: Solve for x
    x = 14,957,989,819.34/140,699.60
  6. Step 6: Final answer
    x = 106,311.53

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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.