Home / 209,913.67-314,889.38-67,762.32

Finding the Fourth Proportional to 209,913.67, 314,889.38 and 67,762.32

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Solution

The fourth proportional to 209,913.67, 314,889.38 and 67,762.32 is: 101,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,913.67 : 314,889.38 = 67,762.32 : x
  2. Step 2: Convert to fraction form
    209,913.67/314,889.38 = 67,762.32/x
  3. Step 3: Cross multiply
    209,913.67x = 314,889.38 × 67,762.32
  4. Step 4: Simplify right side
    209,913.67x = 21,337,634,932.16
  5. Step 5: Solve for x
    x = 21,337,634,932.16/209,913.67
  6. Step 6: Final answer
    x = 101,649.57

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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.