Home / 121,742.55-182,527.43-55,214.55

Finding the Fourth Proportional to 121,742.55, 182,527.43 and 55,214.55

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Solution

The fourth proportional to 121,742.55, 182,527.43 and 55,214.55 is: 82,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,742.55 : 182,527.43 = 55,214.55 : x
  2. Step 2: Convert to fraction form
    121,742.55/182,527.43 = 55,214.55/x
  3. Step 3: Cross multiply
    121,742.55x = 182,527.43 × 55,214.55
  4. Step 4: Simplify right side
    121,742.55x = 10,078,169,634.03
  5. Step 5: Solve for x
    x = 10,078,169,634.03/121,742.55
  6. Step 6: Final answer
    x = 82,782.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.