Home / 126,903-190,357.56-42,664.26

Finding the Fourth Proportional to 126,903, 190,357.56 and 42,664.26

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Solution

The fourth proportional to 126,903, 190,357.56 and 42,664.26 is: 63,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,903 : 190,357.56 = 42,664.26 : x
  2. Step 2: Convert to fraction form
    126,903/190,357.56 = 42,664.26/x
  3. Step 3: Cross multiply
    126,903x = 190,357.56 × 42,664.26
  4. Step 4: Simplify right side
    126,903x = 8,121,464,432.81
  5. Step 5: Solve for x
    x = 8,121,464,432.81/126,903
  6. Step 6: Final answer
    x = 63,997.42

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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.