Home / 137,339.24-189,445.38-80,704.04

Finding the Fourth Proportional to 137,339.24, 189,445.38 and 80,704.04

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Solution

The fourth proportional to 137,339.24, 189,445.38 and 80,704.04 is: 111,322.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,339.24 : 189,445.38 = 80,704.04 : x
  2. Step 2: Convert to fraction form
    137,339.24/189,445.38 = 80,704.04/x
  3. Step 3: Cross multiply
    137,339.24x = 189,445.38 × 80,704.04
  4. Step 4: Simplify right side
    137,339.24x = 15,289,007,525.34
  5. Step 5: Solve for x
    x = 15,289,007,525.34/137,339.24
  6. Step 6: Final answer
    x = 111,322.94

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1.5x scale

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.