Home / 126,893.12-190,132.02-76,821.46

Finding the Fourth Proportional to 126,893.12, 190,132.02 and 76,821.46

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Solution

The fourth proportional to 126,893.12, 190,132.02 and 76,821.46 is: 115,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,893.12 : 190,132.02 = 76,821.46 : x
  2. Step 2: Convert to fraction form
    126,893.12/190,132.02 = 76,821.46/x
  3. Step 3: Cross multiply
    126,893.12x = 190,132.02 × 76,821.46
  4. Step 4: Simplify right side
    126,893.12x = 14,606,219,369.15
  5. Step 5: Solve for x
    x = 14,606,219,369.15/126,893.12
  6. Step 6: Final answer
    x = 115,106.47

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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.