Home / 127,021.80-190,572.36-76,476.24

Finding the Fourth Proportional to 127,021.80, 190,572.36 and 76,476.24

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Solution

The fourth proportional to 127,021.80, 190,572.36 and 76,476.24 is: 114,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,021.80 : 190,572.36 = 76,476.24 : x
  2. Step 2: Convert to fraction form
    127,021.80/190,572.36 = 76,476.24/x
  3. Step 3: Cross multiply
    127,021.80x = 190,572.36 × 76,476.24
  4. Step 4: Simplify right side
    127,021.80x = 14,574,257,540.73
  5. Step 5: Solve for x
    x = 14,574,257,540.73/127,021.80
  6. Step 6: Final answer
    x = 114,738.24

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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.