Home / 150,888.64-208,236.48-87,242.56

Finding the Fourth Proportional to 150,888.64, 208,236.48 and 87,242.56

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Solution

The fourth proportional to 150,888.64, 208,236.48 and 87,242.56 is: 120,400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,888.64 : 208,236.48 = 87,242.56 : x
  2. Step 2: Convert to fraction form
    150,888.64/208,236.48 = 87,242.56/x
  3. Step 3: Cross multiply
    150,888.64x = 208,236.48 × 87,242.56
  4. Step 4: Simplify right side
    150,888.64x = 18,167,083,600.59
  5. Step 5: Solve for x
    x = 18,167,083,600.59/150,888.64
  6. Step 6: Final answer
    x = 120,400.61

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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.