Home / 209,945.70-314,918.55-125,964.90

Finding the Fourth Proportional to 209,945.70, 314,918.55 and 125,964.90

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Solution

The fourth proportional to 209,945.70, 314,918.55 and 125,964.90 is: 188,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,945.70 : 314,918.55 = 125,964.90 : x
  2. Step 2: Convert to fraction form
    209,945.70/314,918.55 = 125,964.90/x
  3. Step 3: Cross multiply
    209,945.70x = 314,918.55 × 125,964.90
  4. Step 4: Simplify right side
    209,945.70x = 39,668,683,658.90
  5. Step 5: Solve for x
    x = 39,668,683,658.90/209,945.70
  6. Step 6: Final answer
    x = 188,947.35

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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.