Home / 189,989.40-262,184.22-105,104.64

Finding the Fourth Proportional to 189,989.40, 262,184.22 and 105,104.64

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Solution

The fourth proportional to 189,989.40, 262,184.22 and 105,104.64 is: 145,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,989.40 : 262,184.22 = 105,104.64 : x
  2. Step 2: Convert to fraction form
    189,989.40/262,184.22 = 105,104.64/x
  3. Step 3: Cross multiply
    189,989.40x = 262,184.22 × 105,104.64
  4. Step 4: Simplify right side
    189,989.40x = 27,556,778,056.78
  5. Step 5: Solve for x
    x = 27,556,778,056.78/189,989.40
  6. Step 6: Final answer
    x = 145,043.77

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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.