Home / 210,912.22-316,344.93-53,140.66

Finding the Fourth Proportional to 210,912.22, 316,344.93 and 53,140.66

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Solution

The fourth proportional to 210,912.22, 316,344.93 and 53,140.66 is: 79,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,912.22 : 316,344.93 = 53,140.66 : x
  2. Step 2: Convert to fraction form
    210,912.22/316,344.93 = 53,140.66/x
  3. Step 3: Cross multiply
    210,912.22x = 316,344.93 × 53,140.66
  4. Step 4: Simplify right side
    210,912.22x = 16,810,778,367.85
  5. Step 5: Solve for x
    x = 16,810,778,367.85/210,912.22
  6. Step 6: Final answer
    x = 79,705.09

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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.