Home / 117,167.31-161,706.98-71,837.28

Finding the Fourth Proportional to 117,167.31, 161,706.98 and 71,837.28

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Solution

The fourth proportional to 117,167.31, 161,706.98 and 71,837.28 is: 99,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,167.31 : 161,706.98 = 71,837.28 : x
  2. Step 2: Convert to fraction form
    117,167.31/161,706.98 = 71,837.28/x
  3. Step 3: Cross multiply
    117,167.31x = 161,706.98 × 71,837.28
  4. Step 4: Simplify right side
    117,167.31x = 11,616,589,779.81
  5. Step 5: Solve for x
    x = 11,616,589,779.81/117,167.31
  6. Step 6: Final answer
    x = 99,145.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.