Home / 151,242.44-208,645.27-90,709.01

Finding the Fourth Proportional to 151,242.44, 208,645.27 and 90,709.01

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Solution

The fourth proportional to 151,242.44, 208,645.27 and 90,709.01 is: 125,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,242.44 : 208,645.27 = 90,709.01 : x
  2. Step 2: Convert to fraction form
    151,242.44/208,645.27 = 90,709.01/x
  3. Step 3: Cross multiply
    151,242.44x = 208,645.27 × 90,709.01
  4. Step 4: Simplify right side
    151,242.44x = 18,926,006,568.93
  5. Step 5: Solve for x
    x = 18,926,006,568.93/151,242.44
  6. Step 6: Final answer
    x = 125,136.88

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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.