Home / 150,765.05-208,041.03-87,101.48

Finding the Fourth Proportional to 150,765.05, 208,041.03 and 87,101.48

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Solution

The fourth proportional to 150,765.05, 208,041.03 and 87,101.48 is: 120,191.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,765.05 : 208,041.03 = 87,101.48 : x
  2. Step 2: Convert to fraction form
    150,765.05/208,041.03 = 87,101.48/x
  3. Step 3: Cross multiply
    150,765.05x = 208,041.03 × 87,101.48
  4. Step 4: Simplify right side
    150,765.05x = 18,120,681,613.72
  5. Step 5: Solve for x
    x = 18,120,681,613.72/150,765.05
  6. Step 6: Final answer
    x = 120,191.53

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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.