Home / 142,994.42-197,334.90-78,466.98

Finding the Fourth Proportional to 142,994.42, 197,334.90 and 78,466.98

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Solution

The fourth proportional to 142,994.42, 197,334.90 and 78,466.98 is: 108,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,994.42 : 197,334.90 = 78,466.98 : x
  2. Step 2: Convert to fraction form
    142,994.42/197,334.90 = 78,466.98/x
  3. Step 3: Cross multiply
    142,994.42x = 197,334.90 × 78,466.98
  4. Step 4: Simplify right side
    142,994.42x = 15,484,273,651.60
  5. Step 5: Solve for x
    x = 15,484,273,651.60/142,994.42
  6. Step 6: Final answer
    x = 108,285.86

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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.