Home / 189,023.60-260,855.63-102,986.69

Finding the Fourth Proportional to 189,023.60, 260,855.63 and 102,986.69

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Solution

The fourth proportional to 189,023.60, 260,855.63 and 102,986.69 is: 142,123.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,023.60 : 260,855.63 = 102,986.69 : x
  2. Step 2: Convert to fraction form
    189,023.60/260,855.63 = 102,986.69/x
  3. Step 3: Cross multiply
    189,023.60x = 260,855.63 × 102,986.69
  4. Step 4: Simplify right side
    189,023.60x = 26,864,656,468.55
  5. Step 5: Solve for x
    x = 26,864,656,468.55/189,023.60
  6. Step 6: Final answer
    x = 142,123.29

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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.