Home / 121,757.45-168,074.96-104,693.18

Finding the Fourth Proportional to 121,757.45, 168,074.96 and 104,693.18

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Solution

The fourth proportional to 121,757.45, 168,074.96 and 104,693.18 is: 144,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,757.45 : 168,074.96 = 104,693.18 : x
  2. Step 2: Convert to fraction form
    121,757.45/168,074.96 = 104,693.18/x
  3. Step 3: Cross multiply
    121,757.45x = 168,074.96 × 104,693.18
  4. Step 4: Simplify right side
    121,757.45x = 17,596,300,676.93
  5. Step 5: Solve for x
    x = 17,596,300,676.93/121,757.45
  6. Step 6: Final answer
    x = 144,519.30

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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.