Home / 163,467.25-245,214.96-45,138.61

Finding the Fourth Proportional to 163,467.25, 245,214.96 and 45,138.61

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Solution

The fourth proportional to 163,467.25, 245,214.96 and 45,138.61 is: 67,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,467.25 : 245,214.96 = 45,138.61 : x
  2. Step 2: Convert to fraction form
    163,467.25/245,214.96 = 45,138.61/x
  3. Step 3: Cross multiply
    163,467.25x = 245,214.96 × 45,138.61
  4. Step 4: Simplify right side
    163,467.25x = 11,068,662,445.61
  5. Step 5: Solve for x
    x = 11,068,662,445.61/163,467.25
  6. Step 6: Final answer
    x = 67,711.80

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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.