Home / 138,861.46-191,628.43-75,199.24

Finding the Fourth Proportional to 138,861.46, 191,628.43 and 75,199.24

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Solution

The fourth proportional to 138,861.46, 191,628.43 and 75,199.24 is: 103,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,861.46 : 191,628.43 = 75,199.24 : x
  2. Step 2: Convert to fraction form
    138,861.46/191,628.43 = 75,199.24/x
  3. Step 3: Cross multiply
    138,861.46x = 191,628.43 × 75,199.24
  4. Step 4: Simplify right side
    138,861.46x = 14,410,310,964.25
  5. Step 5: Solve for x
    x = 14,410,310,964.25/138,861.46
  6. Step 6: Final answer
    x = 103,774.74

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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.