Home / 448,020.37-671,924.40-128,162.38

Finding the Fourth Proportional to 448,020.37, 671,924.40 and 128,162.38

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Solution

The fourth proportional to 448,020.37, 671,924.40 and 128,162.38 is: 192,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,020.37 : 671,924.40 = 128,162.38 : x
  2. Step 2: Convert to fraction form
    448,020.37/671,924.40 = 128,162.38/x
  3. Step 3: Cross multiply
    448,020.37x = 671,924.40 × 128,162.38
  4. Step 4: Simplify right side
    448,020.37x = 86,115,430,284.07
  5. Step 5: Solve for x
    x = 86,115,430,284.07/448,020.37
  6. Step 6: Final answer
    x = 192,213.20

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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.