Home / 126,830.12-190,274.34-38,085.31

Finding the Fourth Proportional to 126,830.12, 190,274.34 and 38,085.31

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Solution

The fourth proportional to 126,830.12, 190,274.34 and 38,085.31 is: 57,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,830.12 : 190,274.34 = 38,085.31 : x
  2. Step 2: Convert to fraction form
    126,830.12/190,274.34 = 38,085.31/x
  3. Step 3: Cross multiply
    126,830.12x = 190,274.34 × 38,085.31
  4. Step 4: Simplify right side
    126,830.12x = 7,246,656,427.20
  5. Step 5: Solve for x
    x = 7,246,656,427.20/126,830.12
  6. Step 6: Final answer
    x = 57,136.71

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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.