Home / 159,431.64-219,775.24-131,088.12

Finding the Fourth Proportional to 159,431.64, 219,775.24 and 131,088.12

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Solution

The fourth proportional to 159,431.64, 219,775.24 and 131,088.12 is: 180,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,431.64 : 219,775.24 = 131,088.12 : x
  2. Step 2: Convert to fraction form
    159,431.64/219,775.24 = 131,088.12/x
  3. Step 3: Cross multiply
    159,431.64x = 219,775.24 × 131,088.12
  4. Step 4: Simplify right side
    159,431.64x = 28,809,923,034.15
  5. Step 5: Solve for x
    x = 28,809,923,034.15/159,431.64
  6. Step 6: Final answer
    x = 180,703.92

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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.