Home / 259,731.07-389,836.08-131,737.19

Finding the Fourth Proportional to 259,731.07, 389,836.08 and 131,737.19

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Solution

The fourth proportional to 259,731.07, 389,836.08 and 131,737.19 is: 197,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,731.07 : 389,836.08 = 131,737.19 : x
  2. Step 2: Convert to fraction form
    259,731.07/389,836.08 = 131,737.19/x
  3. Step 3: Cross multiply
    259,731.07x = 389,836.08 × 131,737.19
  4. Step 4: Simplify right side
    259,731.07x = 51,355,909,739.82
  5. Step 5: Solve for x
    x = 51,355,909,739.82/259,731.07
  6. Step 6: Final answer
    x = 197,727.25

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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.