Home / 163,538.55-245,402.99-68,761.86

Finding the Fourth Proportional to 163,538.55, 245,402.99 and 68,761.86

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Solution

The fourth proportional to 163,538.55, 245,402.99 and 68,761.86 is: 103,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538.55 : 245,402.99 = 68,761.86 : x
  2. Step 2: Convert to fraction form
    163,538.55/245,402.99 = 68,761.86/x
  3. Step 3: Cross multiply
    163,538.55x = 245,402.99 × 68,761.86
  4. Step 4: Simplify right side
    163,538.55x = 16,874,365,698.15
  5. Step 5: Solve for x
    x = 16,874,365,698.15/163,538.55
  6. Step 6: Final answer
    x = 103,182.80

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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.