Home / 135,742.16-203,673.72-52,642.64

Finding the Fourth Proportional to 135,742.16, 203,673.72 and 52,642.64

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Solution

The fourth proportional to 135,742.16, 203,673.72 and 52,642.64 is: 78,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,742.16 : 203,673.72 = 52,642.64 : x
  2. Step 2: Convert to fraction form
    135,742.16/203,673.72 = 52,642.64/x
  3. Step 3: Cross multiply
    135,742.16x = 203,673.72 × 52,642.64
  4. Step 4: Simplify right side
    135,742.16x = 10,721,922,319.42
  5. Step 5: Solve for x
    x = 10,721,922,319.42/135,742.16
  6. Step 6: Final answer
    x = 78,987.41

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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.