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Finding the Fourth Proportional to 163,779.98, 245,668.53 and 45,451.32

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Solution

The fourth proportional to 163,779.98, 245,668.53 and 45,451.32 is: 68,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,779.98 : 245,668.53 = 45,451.32 : x
  2. Step 2: Convert to fraction form
    163,779.98/245,668.53 = 45,451.32/x
  3. Step 3: Cross multiply
    163,779.98x = 245,668.53 × 45,451.32
  4. Step 4: Simplify right side
    163,779.98x = 11,165,958,220.15
  5. Step 5: Solve for x
    x = 11,165,958,220.15/163,779.98
  6. Step 6: Final answer
    x = 68,176.58

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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.