Home / 163,538.90-245,403.53-68,762.22

Finding the Fourth Proportional to 163,538.90, 245,403.53 and 68,762.22

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Solution

The fourth proportional to 163,538.90, 245,403.53 and 68,762.22 is: 103,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538.90 : 245,403.53 = 68,762.22 : x
  2. Step 2: Convert to fraction form
    163,538.90/245,403.53 = 68,762.22/x
  3. Step 3: Cross multiply
    163,538.90x = 245,403.53 × 68,762.22
  4. Step 4: Simplify right side
    163,538.90x = 16,874,491,518.64
  5. Step 5: Solve for x
    x = 16,874,491,518.64/163,538.90
  6. Step 6: Final answer
    x = 103,183.35

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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.