Home / 126,396.52-189,378.99-69,518.04

Finding the Fourth Proportional to 126,396.52, 189,378.99 and 69,518.04

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Solution

The fourth proportional to 126,396.52, 189,378.99 and 69,518.04 is: 104,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,396.52 : 189,378.99 = 69,518.04 : x
  2. Step 2: Convert to fraction form
    126,396.52/189,378.99 = 69,518.04/x
  3. Step 3: Cross multiply
    126,396.52x = 189,378.99 × 69,518.04
  4. Step 4: Simplify right side
    126,396.52x = 13,165,254,907.49
  5. Step 5: Solve for x
    x = 13,165,254,907.49/126,396.52
  6. Step 6: Final answer
    x = 104,158.37

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1.5x scale

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.