Home / 126,983.95-190,308.78-70,850.48

Finding the Fourth Proportional to 126,983.95, 190,308.78 and 70,850.48

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Solution

The fourth proportional to 126,983.95, 190,308.78 and 70,850.48 is: 106,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,983.95 : 190,308.78 = 70,850.48 : x
  2. Step 2: Convert to fraction form
    126,983.95/190,308.78 = 70,850.48/x
  3. Step 3: Cross multiply
    126,983.95x = 190,308.78 × 70,850.48
  4. Step 4: Simplify right side
    126,983.95x = 13,483,468,411.21
  5. Step 5: Solve for x
    x = 13,483,468,411.21/126,983.95
  6. Step 6: Final answer
    x = 106,182.46

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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.