Home / 189,720.24-284,621.40-100,960.74

Finding the Fourth Proportional to 189,720.24, 284,621.40 and 100,960.74

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Solution

The fourth proportional to 189,720.24, 284,621.40 and 100,960.74 is: 151,462.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,720.24 : 284,621.40 = 100,960.74 : x
  2. Step 2: Convert to fraction form
    189,720.24/284,621.40 = 100,960.74/x
  3. Step 3: Cross multiply
    189,720.24x = 284,621.40 × 100,960.74
  4. Step 4: Simplify right side
    189,720.24x = 28,735,587,163.84
  5. Step 5: Solve for x
    x = 28,735,587,163.84/189,720.24
  6. Step 6: Final answer
    x = 151,462.95

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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.