Home / 120,409.94-166,246.08-75,106.10

Finding the Fourth Proportional to 120,409.94, 166,246.08 and 75,106.10

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Solution

The fourth proportional to 120,409.94, 166,246.08 and 75,106.10 is: 103,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,409.94 : 166,246.08 = 75,106.10 : x
  2. Step 2: Convert to fraction form
    120,409.94/166,246.08 = 75,106.10/x
  3. Step 3: Cross multiply
    120,409.94x = 166,246.08 × 75,106.10
  4. Step 4: Simplify right side
    120,409.94x = 12,486,094,709.09
  5. Step 5: Solve for x
    x = 12,486,094,709.09/120,409.94
  6. Step 6: Final answer
    x = 103,696.54

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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.