Home / 105,944.60-159,176.10-79,700.60

Finding the Fourth Proportional to 105,944.60, 159,176.10 and 79,700.60

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Solution

The fourth proportional to 105,944.60, 159,176.10 and 79,700.60 is: 119,745.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,944.60 : 159,176.10 = 79,700.60 : x
  2. Step 2: Convert to fraction form
    105,944.60/159,176.10 = 79,700.60/x
  3. Step 3: Cross multiply
    105,944.60x = 159,176.10 × 79,700.60
  4. Step 4: Simplify right side
    105,944.60x = 12,686,430,675.66
  5. Step 5: Solve for x
    x = 12,686,430,675.66/105,944.60
  6. Step 6: Final answer
    x = 119,745.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.