Home / 108,919.09-163,386.78-30,032.65

Finding the Fourth Proportional to 108,919.09, 163,386.78 and 30,032.65

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Solution

The fourth proportional to 108,919.09, 163,386.78 and 30,032.65 is: 45,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,919.09 : 163,386.78 = 30,032.65 : x
  2. Step 2: Convert to fraction form
    108,919.09/163,386.78 = 30,032.65/x
  3. Step 3: Cross multiply
    108,919.09x = 163,386.78 × 30,032.65
  4. Step 4: Simplify right side
    108,919.09x = 4,906,937,978.37
  5. Step 5: Solve for x
    x = 4,906,937,978.37/108,919.09
  6. Step 6: Final answer
    x = 45,051.22

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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.