Home / 108,991.76-163,484.40-30,110.72

Finding the Fourth Proportional to 108,991.76, 163,484.40 and 30,110.72

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Solution

The fourth proportional to 108,991.76, 163,484.40 and 30,110.72 is: 45,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,991.76 : 163,484.40 = 30,110.72 : x
  2. Step 2: Convert to fraction form
    108,991.76/163,484.40 = 30,110.72/x
  3. Step 3: Cross multiply
    108,991.76x = 163,484.40 × 30,110.72
  4. Step 4: Simplify right side
    108,991.76x = 4,922,632,992.77
  5. Step 5: Solve for x
    x = 4,922,632,992.77/108,991.76
  6. Step 6: Final answer
    x = 45,165.18

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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.