Home / 126,782.96-174,980.75-72,352.80

Finding the Fourth Proportional to 126,782.96, 174,980.75 and 72,352.80

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Solution

The fourth proportional to 126,782.96, 174,980.75 and 72,352.80 is: 99,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,782.96 : 174,980.75 = 72,352.80 : x
  2. Step 2: Convert to fraction form
    126,782.96/174,980.75 = 72,352.80/x
  3. Step 3: Cross multiply
    126,782.96x = 174,980.75 × 72,352.80
  4. Step 4: Simplify right side
    126,782.96x = 12,660,346,846.84
  5. Step 5: Solve for x
    x = 12,660,346,846.84/126,782.96
  6. Step 6: Final answer
    x = 99,858.43

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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.