Home / 137,451.45-189,688.14-77,019.86

Finding the Fourth Proportional to 137,451.45, 189,688.14 and 77,019.86

Calculator

Solution

The fourth proportional to 137,451.45, 189,688.14 and 77,019.86 is: 106,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,451.45 : 189,688.14 = 77,019.86 : x
  2. Step 2: Convert to fraction form
    137,451.45/189,688.14 = 77,019.86/x
  3. Step 3: Cross multiply
    137,451.45x = 189,688.14 × 77,019.86
  4. Step 4: Simplify right side
    137,451.45x = 14,609,752,881.23
  5. Step 5: Solve for x
    x = 14,609,752,881.23/137,451.45
  6. Step 6: Final answer
    x = 106,290.28

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.