Home / 140,212.92-210,144.42-70,112.28

Finding the Fourth Proportional to 140,212.92, 210,144.42 and 70,112.28

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Solution

The fourth proportional to 140,212.92, 210,144.42 and 70,112.28 is: 105,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,212.92 : 210,144.42 = 70,112.28 : x
  2. Step 2: Convert to fraction form
    140,212.92/210,144.42 = 70,112.28/x
  3. Step 3: Cross multiply
    140,212.92x = 210,144.42 × 70,112.28
  4. Step 4: Simplify right side
    140,212.92x = 14,733,704,415.48
  5. Step 5: Solve for x
    x = 14,733,704,415.48/140,212.92
  6. Step 6: Final answer
    x = 105,080.93

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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.