Home / 151,968.51-209,742.60-88,343.22

Finding the Fourth Proportional to 151,968.51, 209,742.60 and 88,343.22

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Solution

The fourth proportional to 151,968.51, 209,742.60 and 88,343.22 is: 121,928.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,968.51 : 209,742.60 = 88,343.22 : x
  2. Step 2: Convert to fraction form
    151,968.51/209,742.60 = 88,343.22/x
  3. Step 3: Cross multiply
    151,968.51x = 209,742.60 × 88,343.22
  4. Step 4: Simplify right side
    151,968.51x = 18,529,336,655.17
  5. Step 5: Solve for x
    x = 18,529,336,655.17/151,968.51
  6. Step 6: Final answer
    x = 121,928.79

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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.