Home / 149,357.07-206,112.65-82,289.07

Finding the Fourth Proportional to 149,357.07, 206,112.65 and 82,289.07

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Solution

The fourth proportional to 149,357.07, 206,112.65 and 82,289.07 is: 113,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,357.07 : 206,112.65 = 82,289.07 : x
  2. Step 2: Convert to fraction form
    149,357.07/206,112.65 = 82,289.07/x
  3. Step 3: Cross multiply
    149,357.07x = 206,112.65 × 82,289.07
  4. Step 4: Simplify right side
    149,357.07x = 16,960,817,872.29
  5. Step 5: Solve for x
    x = 16,960,817,872.29/149,357.07
  6. Step 6: Final answer
    x = 113,558.86

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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.