Home / 126,775.47-190,163.19-103,054.71

Finding the Fourth Proportional to 126,775.47, 190,163.19 and 103,054.71

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Solution

The fourth proportional to 126,775.47, 190,163.19 and 103,054.71 is: 154,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,775.47 : 190,163.19 = 103,054.71 : x
  2. Step 2: Convert to fraction form
    126,775.47/190,163.19 = 103,054.71/x
  3. Step 3: Cross multiply
    126,775.47x = 190,163.19 × 103,054.71
  4. Step 4: Simplify right side
    126,775.47x = 19,597,212,398.12
  5. Step 5: Solve for x
    x = 19,597,212,398.12/126,775.47
  6. Step 6: Final answer
    x = 154,582.05

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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.