Home / 108,865.80-163,317.81-49,707.45

Finding the Fourth Proportional to 108,865.80, 163,317.81 and 49,707.45

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Solution

The fourth proportional to 108,865.80, 163,317.81 and 49,707.45 is: 74,569.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,865.80 : 163,317.81 = 49,707.45 : x
  2. Step 2: Convert to fraction form
    108,865.80/163,317.81 = 49,707.45/x
  3. Step 3: Cross multiply
    108,865.80x = 163,317.81 × 49,707.45
  4. Step 4: Simplify right side
    108,865.80x = 8,118,111,874.68
  5. Step 5: Solve for x
    x = 8,118,111,874.68/108,865.80
  6. Step 6: Final answer
    x = 74,569.90

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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.