Home / 149,494.51-223,988.01-90,205.60

Finding the Fourth Proportional to 149,494.51, 223,988.01 and 90,205.60

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Solution

The fourth proportional to 149,494.51, 223,988.01 and 90,205.60 is: 135,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,494.51 : 223,988.01 = 90,205.60 : x
  2. Step 2: Convert to fraction form
    149,494.51/223,988.01 = 90,205.60/x
  3. Step 3: Cross multiply
    149,494.51x = 223,988.01 × 90,205.60
  4. Step 4: Simplify right side
    149,494.51x = 20,204,972,834.86
  5. Step 5: Solve for x
    x = 20,204,972,834.86/149,494.51
  6. Step 6: Final answer
    x = 135,155.28

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1.5x scale

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.