Home / 189,987.24-262,139.94-113,485.80

Finding the Fourth Proportional to 189,987.24, 262,139.94 and 113,485.80

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Solution

The fourth proportional to 189,987.24, 262,139.94 and 113,485.80 is: 156,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,987.24 : 262,139.94 = 113,485.80 : x
  2. Step 2: Convert to fraction form
    189,987.24/262,139.94 = 113,485.80/x
  3. Step 3: Cross multiply
    189,987.24x = 262,139.94 × 113,485.80
  4. Step 4: Simplify right side
    189,987.24x = 29,749,160,802.85
  5. Step 5: Solve for x
    x = 29,749,160,802.85/189,987.24
  6. Step 6: Final answer
    x = 156,585.05

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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.