Home / 137,399.00-189,556.04-85,685.67

Finding the Fourth Proportional to 137,399.00, 189,556.04 and 85,685.67

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Solution

The fourth proportional to 137,399.00, 189,556.04 and 85,685.67 is: 118,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,399.00 : 189,556.04 = 85,685.67 : x
  2. Step 2: Convert to fraction form
    137,399.00/189,556.04 = 85,685.67/x
  3. Step 3: Cross multiply
    137,399.00x = 189,556.04 × 85,685.67
  4. Step 4: Simplify right side
    137,399.00x = 16,242,236,434.81
  5. Step 5: Solve for x
    x = 16,242,236,434.81/137,399.00
  6. Step 6: Final answer
    x = 118,212.19

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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.