Home / 117,113.26-161,709.48-108,157.51

Finding the Fourth Proportional to 117,113.26, 161,709.48 and 108,157.51

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Solution

The fourth proportional to 117,113.26, 161,709.48 and 108,157.51 is: 149,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,113.26 : 161,709.48 = 108,157.51 : x
  2. Step 2: Convert to fraction form
    117,113.26/161,709.48 = 108,157.51/x
  3. Step 3: Cross multiply
    117,113.26x = 161,709.48 × 108,157.51
  4. Step 4: Simplify right side
    117,113.26x = 17,490,094,700.19
  5. Step 5: Solve for x
    x = 17,490,094,700.19/117,113.26
  6. Step 6: Final answer
    x = 149,343.42

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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.