Home / 127,981.86-176,600.97-90,190.50

Finding the Fourth Proportional to 127,981.86, 176,600.97 and 90,190.50

Calculator

Solution

The fourth proportional to 127,981.86, 176,600.97 and 90,190.50 is: 124,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,981.86 : 176,600.97 = 90,190.50 : x
  2. Step 2: Convert to fraction form
    127,981.86/176,600.97 = 90,190.50/x
  3. Step 3: Cross multiply
    127,981.86x = 176,600.97 × 90,190.50
  4. Step 4: Simplify right side
    127,981.86x = 15,927,729,784.79
  5. Step 5: Solve for x
    x = 15,927,729,784.79/127,981.86
  6. Step 6: Final answer
    x = 124,453.03

Related Problems

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.