Home / 189,027.63-260,895.80-108,509.55

Finding the Fourth Proportional to 189,027.63, 260,895.80 and 108,509.55

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Solution

The fourth proportional to 189,027.63, 260,895.80 and 108,509.55 is: 149,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,027.63 : 260,895.80 = 108,509.55 : x
  2. Step 2: Convert to fraction form
    189,027.63/260,895.80 = 108,509.55/x
  3. Step 3: Cross multiply
    189,027.63x = 260,895.80 × 108,509.55
  4. Step 4: Simplify right side
    189,027.63x = 28,309,685,312.34
  5. Step 5: Solve for x
    x = 28,309,685,312.34/189,027.63
  6. Step 6: Final answer
    x = 149,764.80

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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.