Home / 140,057.70-210,040.83-45,265.61

Finding the Fourth Proportional to 140,057.70, 210,040.83 and 45,265.61

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Solution

The fourth proportional to 140,057.70, 210,040.83 and 45,265.61 is: 67,883.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,057.70 : 210,040.83 = 45,265.61 : x
  2. Step 2: Convert to fraction form
    140,057.70/210,040.83 = 45,265.61/x
  3. Step 3: Cross multiply
    140,057.70x = 210,040.83 × 45,265.61
  4. Step 4: Simplify right side
    140,057.70x = 9,507,626,294.86
  5. Step 5: Solve for x
    x = 9,507,626,294.86/140,057.70
  6. Step 6: Final answer
    x = 67,883.64

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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.