Home / 448,021.37-671,925.90-128,163.38

Finding the Fourth Proportional to 448,021.37, 671,925.90 and 128,163.38

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Solution

The fourth proportional to 448,021.37, 671,925.90 and 128,163.38 is: 192,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,021.37 : 671,925.90 = 128,163.38 : x
  2. Step 2: Convert to fraction form
    448,021.37/671,925.90 = 128,163.38/x
  3. Step 3: Cross multiply
    448,021.37x = 671,925.90 × 128,163.38
  4. Step 4: Simplify right side
    448,021.37x = 86,116,294,453.54
  5. Step 5: Solve for x
    x = 86,116,294,453.54/448,021.37
  6. Step 6: Final answer
    x = 192,214.70

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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.