Home / 140,128.74-210,305.22-73,608.12

Finding the Fourth Proportional to 140,128.74, 210,305.22 and 73,608.12

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Solution

The fourth proportional to 140,128.74, 210,305.22 and 73,608.12 is: 110,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,128.74 : 210,305.22 = 73,608.12 : x
  2. Step 2: Convert to fraction form
    140,128.74/210,305.22 = 73,608.12/x
  3. Step 3: Cross multiply
    140,128.74x = 210,305.22 × 73,608.12
  4. Step 4: Simplify right side
    140,128.74x = 15,480,171,870.39
  5. Step 5: Solve for x
    x = 15,480,171,870.39/140,128.74
  6. Step 6: Final answer
    x = 110,471.07

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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.