Home / 130,821.76-180,601.28-77,124.16

Finding the Fourth Proportional to 130,821.76, 180,601.28 and 77,124.16

Calculator

Solution

The fourth proportional to 130,821.76, 180,601.28 and 77,124.16 is: 106,470.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,821.76 : 180,601.28 = 77,124.16 : x
  2. Step 2: Convert to fraction form
    130,821.76/180,601.28 = 77,124.16/x
  3. Step 3: Cross multiply
    130,821.76x = 180,601.28 × 77,124.16
  4. Step 4: Simplify right side
    130,821.76x = 13,928,722,014.92
  5. Step 5: Solve for x
    x = 13,928,722,014.92/130,821.76
  6. Step 6: Final answer
    x = 106,470.99

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.