Home / 189,721.24-284,622.90-100,961.74

Finding the Fourth Proportional to 189,721.24, 284,622.90 and 100,961.74

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Solution

The fourth proportional to 189,721.24, 284,622.90 and 100,961.74 is: 151,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,721.24 : 284,622.90 = 100,961.74 : x
  2. Step 2: Convert to fraction form
    189,721.24/284,622.90 = 100,961.74/x
  3. Step 3: Cross multiply
    189,721.24x = 284,622.90 × 100,961.74
  4. Step 4: Simplify right side
    189,721.24x = 28,736,023,227.85
  5. Step 5: Solve for x
    x = 28,736,023,227.85/189,721.24
  6. Step 6: Final answer
    x = 151,464.45

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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.