Home / 448,775.07-673,157.26-128,934.82

Finding the Fourth Proportional to 448,775.07, 673,157.26 and 128,934.82

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Solution

The fourth proportional to 448,775.07, 673,157.26 and 128,934.82 is: 193,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,775.07 : 673,157.26 = 128,934.82 : x
  2. Step 2: Convert to fraction form
    448,775.07/673,157.26 = 128,934.82/x
  3. Step 3: Cross multiply
    448,775.07x = 673,157.26 × 128,934.82
  4. Step 4: Simplify right side
    448,775.07x = 86,793,410,149.79
  5. Step 5: Solve for x
    x = 86,793,410,149.79/448,775.07
  6. Step 6: Final answer
    x = 193,400.69

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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.