Home / 108,866.16-163,318.38-49,707.81

Finding the Fourth Proportional to 108,866.16, 163,318.38 and 49,707.81

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Solution

The fourth proportional to 108,866.16, 163,318.38 and 49,707.81 is: 74,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866.16 : 163,318.38 = 49,707.81 : x
  2. Step 2: Convert to fraction form
    108,866.16/163,318.38 = 49,707.81/x
  3. Step 3: Cross multiply
    108,866.16x = 163,318.38 × 49,707.81
  4. Step 4: Simplify right side
    108,866.16x = 8,118,198,816.14
  5. Step 5: Solve for x
    x = 8,118,198,816.14/108,866.16
  6. Step 6: Final answer
    x = 74,570.45

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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.