Home / 189,121.50-260,988.48-104,236.74

Finding the Fourth Proportional to 189,121.50, 260,988.48 and 104,236.74

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Solution

The fourth proportional to 189,121.50, 260,988.48 and 104,236.74 is: 143,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,121.50 : 260,988.48 = 104,236.74 : x
  2. Step 2: Convert to fraction form
    189,121.50/260,988.48 = 104,236.74/x
  3. Step 3: Cross multiply
    189,121.50x = 260,988.48 × 104,236.74
  4. Step 4: Simplify right side
    189,121.50x = 27,204,588,332.76
  5. Step 5: Solve for x
    x = 27,204,588,332.76/189,121.50
  6. Step 6: Final answer
    x = 143,847.15

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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.