Home / 126,266.89-174,278.13-72,583.05

Finding the Fourth Proportional to 126,266.89, 174,278.13 and 72,583.05

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Solution

The fourth proportional to 126,266.89, 174,278.13 and 72,583.05 is: 100,181.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,266.89 : 174,278.13 = 72,583.05 : x
  2. Step 2: Convert to fraction form
    126,266.89/174,278.13 = 72,583.05/x
  3. Step 3: Cross multiply
    126,266.89x = 174,278.13 × 72,583.05
  4. Step 4: Simplify right side
    126,266.89x = 12,649,638,223.70
  5. Step 5: Solve for x
    x = 12,649,638,223.70/126,266.89
  6. Step 6: Final answer
    x = 100,181.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.