Home / 153,932.60-212,430.60-85,947.28

Finding the Fourth Proportional to 153,932.60, 212,430.60 and 85,947.28

Calculator

Solution

The fourth proportional to 153,932.60, 212,430.60 and 85,947.28 is: 118,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,932.60 : 212,430.60 = 85,947.28 : x
  2. Step 2: Convert to fraction form
    153,932.60/212,430.60 = 85,947.28/x
  3. Step 3: Cross multiply
    153,932.60x = 212,430.60 × 85,947.28
  4. Step 4: Simplify right side
    153,932.60x = 18,257,831,727.69
  5. Step 5: Solve for x
    x = 18,257,831,727.69/153,932.60
  6. Step 6: Final answer
    x = 118,609.26

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.