Home / 210,009.14-315,012.35-125,793.23

Finding the Fourth Proportional to 210,009.14, 315,012.35 and 125,793.23

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Solution

The fourth proportional to 210,009.14, 315,012.35 and 125,793.23 is: 188,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,009.14 : 315,012.35 = 125,793.23 : x
  2. Step 2: Convert to fraction form
    210,009.14/315,012.35 = 125,793.23/x
  3. Step 3: Cross multiply
    210,009.14x = 315,012.35 × 125,793.23
  4. Step 4: Simplify right side
    210,009.14x = 39,626,420,996.39
  5. Step 5: Solve for x
    x = 39,626,420,996.39/210,009.14
  6. Step 6: Final answer
    x = 188,689.03

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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.