Home / 124,106.16-171,302.58-81,091.96

Finding the Fourth Proportional to 124,106.16, 171,302.58 and 81,091.96

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Solution

The fourth proportional to 124,106.16, 171,302.58 and 81,091.96 is: 111,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,106.16 : 171,302.58 = 81,091.96 : x
  2. Step 2: Convert to fraction form
    124,106.16/171,302.58 = 81,091.96/x
  3. Step 3: Cross multiply
    124,106.16x = 171,302.58 × 81,091.96
  4. Step 4: Simplify right side
    124,106.16x = 13,891,261,965.26
  5. Step 5: Solve for x
    x = 13,891,261,965.26/124,106.16
  6. Step 6: Final answer
    x = 111,930.48

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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.