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Finding the Fourth Proportional to 163,917.60, 245,842.80 and 45,559.20

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Solution

The fourth proportional to 163,917.60, 245,842.80 and 45,559.20 is: 68,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,917.60 : 245,842.80 = 45,559.20 : x
  2. Step 2: Convert to fraction form
    163,917.60/245,842.80 = 45,559.20/x
  3. Step 3: Cross multiply
    163,917.60x = 245,842.80 × 45,559.20
  4. Step 4: Simplify right side
    163,917.60x = 11,200,401,293.76
  5. Step 5: Solve for x
    x = 11,200,401,293.76/163,917.60
  6. Step 6: Final answer
    x = 68,329.46

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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.