Home / 107,970.02-161,974.17-51,911.75

Finding the Fourth Proportional to 107,970.02, 161,974.17 and 51,911.75

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Solution

The fourth proportional to 107,970.02, 161,974.17 and 51,911.75 is: 77,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,970.02 : 161,974.17 = 51,911.75 : x
  2. Step 2: Convert to fraction form
    107,970.02/161,974.17 = 51,911.75/x
  3. Step 3: Cross multiply
    107,970.02x = 161,974.17 × 51,911.75
  4. Step 4: Simplify right side
    107,970.02x = 8,408,362,619.50
  5. Step 5: Solve for x
    x = 8,408,362,619.50/107,970.02
  6. Step 6: Final answer
    x = 77,876.83

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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.