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Finding the Fourth Proportional to 161,379.20, 241,809.60 and 105,910.40

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Solution

The fourth proportional to 161,379.20, 241,809.60 and 105,910.40 is: 158,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,379.20 : 241,809.60 = 105,910.40 : x
  2. Step 2: Convert to fraction form
    161,379.20/241,809.60 = 105,910.40/x
  3. Step 3: Cross multiply
    161,379.20x = 241,809.60 × 105,910.40
  4. Step 4: Simplify right side
    161,379.20x = 25,610,151,459.84
  5. Step 5: Solve for x
    x = 25,610,151,459.84/161,379.20
  6. Step 6: Final answer
    x = 158,695.49

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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.