Home / 121,922.24-168,241.28-75,977.62

Finding the Fourth Proportional to 121,922.24, 168,241.28 and 75,977.62

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Solution

The fourth proportional to 121,922.24, 168,241.28 and 75,977.62 is: 104,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,922.24 : 168,241.28 = 75,977.62 : x
  2. Step 2: Convert to fraction form
    121,922.24/168,241.28 = 75,977.62/x
  3. Step 3: Cross multiply
    121,922.24x = 168,241.28 × 75,977.62
  4. Step 4: Simplify right side
    121,922.24x = 12,782,572,297.94
  5. Step 5: Solve for x
    x = 12,782,572,297.94/121,922.24
  6. Step 6: Final answer
    x = 104,842.01

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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.