Home / 139,534.08-209,301.12-39,704.64

Finding the Fourth Proportional to 139,534.08, 209,301.12 and 39,704.64

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Solution

The fourth proportional to 139,534.08, 209,301.12 and 39,704.64 is: 59,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,534.08 : 209,301.12 = 39,704.64 : x
  2. Step 2: Convert to fraction form
    139,534.08/209,301.12 = 39,704.64/x
  3. Step 3: Cross multiply
    139,534.08x = 209,301.12 × 39,704.64
  4. Step 4: Simplify right side
    139,534.08x = 8,310,225,621.20
  5. Step 5: Solve for x
    x = 8,310,225,621.20/139,534.08
  6. Step 6: Final answer
    x = 59,556.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.