Home / 159,447.12-220,037.28-87,827.34

Finding the Fourth Proportional to 159,447.12, 220,037.28 and 87,827.34

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Solution

The fourth proportional to 159,447.12, 220,037.28 and 87,827.34 is: 121,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,447.12 : 220,037.28 = 87,827.34 : x
  2. Step 2: Convert to fraction form
    159,447.12/220,037.28 = 87,827.34/x
  3. Step 3: Cross multiply
    159,447.12x = 220,037.28 × 87,827.34
  4. Step 4: Simplify right side
    159,447.12x = 19,325,289,003.24
  5. Step 5: Solve for x
    x = 19,325,289,003.24/159,447.12
  6. Step 6: Final answer
    x = 121,201.87

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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.