Home / 189,716.37-284,585.69-71,388.74

Finding the Fourth Proportional to 189,716.37, 284,585.69 and 71,388.74

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Solution

The fourth proportional to 189,716.37, 284,585.69 and 71,388.74 is: 107,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,716.37 : 284,585.69 = 71,388.74 : x
  2. Step 2: Convert to fraction form
    189,716.37/284,585.69 = 71,388.74/x
  3. Step 3: Cross multiply
    189,716.37x = 284,585.69 × 71,388.74
  4. Step 4: Simplify right side
    189,716.37x = 20,316,212,586.67
  5. Step 5: Solve for x
    x = 20,316,212,586.67/189,716.37
  6. Step 6: Final answer
    x = 107,087.29

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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.