Home / 157,659.37-217,513.04-121,371.93

Finding the Fourth Proportional to 157,659.37, 217,513.04 and 121,371.93

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Solution

The fourth proportional to 157,659.37, 217,513.04 and 121,371.93 is: 167,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,659.37 : 217,513.04 = 121,371.93 : x
  2. Step 2: Convert to fraction form
    157,659.37/217,513.04 = 121,371.93/x
  3. Step 3: Cross multiply
    157,659.37x = 217,513.04 × 121,371.93
  4. Step 4: Simplify right side
    157,659.37x = 26,399,976,858.11
  5. Step 5: Solve for x
    x = 26,399,976,858.11/157,659.37
  6. Step 6: Final answer
    x = 167,449.47

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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.