Home / 167,448.78-231,078.40-90,967.28

Finding the Fourth Proportional to 167,448.78, 231,078.40 and 90,967.28

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Solution

The fourth proportional to 167,448.78, 231,078.40 and 90,967.28 is: 125,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,448.78 : 231,078.40 = 90,967.28 : x
  2. Step 2: Convert to fraction form
    167,448.78/231,078.40 = 90,967.28/x
  3. Step 3: Cross multiply
    167,448.78x = 231,078.40 × 90,967.28
  4. Step 4: Simplify right side
    167,448.78x = 21,020,572,131.94
  5. Step 5: Solve for x
    x = 21,020,572,131.94/167,448.78
  6. Step 6: Final answer
    x = 125,534.34

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1.5x scale

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.