Home / 209,051.40-313,577.10-125,902.60

Finding the Fourth Proportional to 209,051.40, 313,577.10 and 125,902.60

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Solution

The fourth proportional to 209,051.40, 313,577.10 and 125,902.60 is: 188,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,051.40 : 313,577.10 = 125,902.60 : x
  2. Step 2: Convert to fraction form
    209,051.40/313,577.10 = 125,902.60/x
  3. Step 3: Cross multiply
    209,051.40x = 313,577.10 × 125,902.60
  4. Step 4: Simplify right side
    209,051.40x = 39,480,172,190.46
  5. Step 5: Solve for x
    x = 39,480,172,190.46/209,051.40
  6. Step 6: Final answer
    x = 188,853.90

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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.