Home / 157,560.38-217,513.59-121,669.82

Finding the Fourth Proportional to 157,560.38, 217,513.59 and 121,669.82

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Solution

The fourth proportional to 157,560.38, 217,513.59 and 121,669.82 is: 167,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,560.38 : 217,513.59 = 121,669.82 : x
  2. Step 2: Convert to fraction form
    157,560.38/217,513.59 = 121,669.82/x
  3. Step 3: Cross multiply
    157,560.38x = 217,513.59 × 121,669.82
  4. Step 4: Simplify right side
    157,560.38x = 26,464,839,342.85
  5. Step 5: Solve for x
    x = 26,464,839,342.85/157,560.38
  6. Step 6: Final answer
    x = 167,966.33

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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.