Home / 161,887.20-242,571.60-106,418.40

Finding the Fourth Proportional to 161,887.20, 242,571.60 and 106,418.40

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Solution

The fourth proportional to 161,887.20, 242,571.60 and 106,418.40 is: 159,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,887.20 : 242,571.60 = 106,418.40 : x
  2. Step 2: Convert to fraction form
    161,887.20/242,571.60 = 106,418.40/x
  3. Step 3: Cross multiply
    161,887.20x = 242,571.60 × 106,418.40
  4. Step 4: Simplify right side
    161,887.20x = 25,814,081,557.44
  5. Step 5: Solve for x
    x = 25,814,081,557.44/161,887.20
  6. Step 6: Final answer
    x = 159,457.21

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1.5x scale

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.