Home / 126,900.47-190,330.05-47,995.94

Finding the Fourth Proportional to 126,900.47, 190,330.05 and 47,995.94

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Solution

The fourth proportional to 126,900.47, 190,330.05 and 47,995.94 is: 71,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,900.47 : 190,330.05 = 47,995.94 : x
  2. Step 2: Convert to fraction form
    126,900.47/190,330.05 = 47,995.94/x
  3. Step 3: Cross multiply
    126,900.47x = 190,330.05 × 47,995.94
  4. Step 4: Simplify right side
    126,900.47x = 9,135,069,660.00
  5. Step 5: Solve for x
    x = 9,135,069,660.00/126,900.47
  6. Step 6: Final answer
    x = 71,986.10

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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.