Home / 108,938.23-163,331.19-55,646.71

Finding the Fourth Proportional to 108,938.23, 163,331.19 and 55,646.71

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Solution

The fourth proportional to 108,938.23, 163,331.19 and 55,646.71 is: 83,431.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,938.23 : 163,331.19 = 55,646.71 : x
  2. Step 2: Convert to fraction form
    108,938.23/163,331.19 = 55,646.71/x
  3. Step 3: Cross multiply
    108,938.23x = 163,331.19 × 55,646.71
  4. Step 4: Simplify right side
    108,938.23x = 9,088,843,363.88
  5. Step 5: Solve for x
    x = 9,088,843,363.88/108,938.23
  6. Step 6: Final answer
    x = 83,431.16

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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.