Home / 140,501.21-210,751.34-50,543.78

Finding the Fourth Proportional to 140,501.21, 210,751.34 and 50,543.78

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Solution

The fourth proportional to 140,501.21, 210,751.34 and 50,543.78 is: 75,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,501.21 : 210,751.34 = 50,543.78 : x
  2. Step 2: Convert to fraction form
    140,501.21/210,751.34 = 50,543.78/x
  3. Step 3: Cross multiply
    140,501.21x = 210,751.34 × 50,543.78
  4. Step 4: Simplify right side
    140,501.21x = 10,652,168,057.19
  5. Step 5: Solve for x
    x = 10,652,168,057.19/140,501.21
  6. Step 6: Final answer
    x = 75,815.49

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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.