Home / 126,241.50-174,218.83-72,543.36

Finding the Fourth Proportional to 126,241.50, 174,218.83 and 72,543.36

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Solution

The fourth proportional to 126,241.50, 174,218.83 and 72,543.36 is: 100,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,241.50 : 174,218.83 = 72,543.36 : x
  2. Step 2: Convert to fraction form
    126,241.50/174,218.83 = 72,543.36/x
  3. Step 3: Cross multiply
    126,241.50x = 174,218.83 × 72,543.36
  4. Step 4: Simplify right side
    126,241.50x = 12,638,419,303.47
  5. Step 5: Solve for x
    x = 12,638,419,303.47/126,241.50
  6. Step 6: Final answer
    x = 100,113.03

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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.