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Finding the Fourth Proportional to 163,940.60, 245,877.30 and 45,582.20

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Solution

The fourth proportional to 163,940.60, 245,877.30 and 45,582.20 is: 68,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,940.60 : 245,877.30 = 45,582.20 : x
  2. Step 2: Convert to fraction form
    163,940.60/245,877.30 = 45,582.20/x
  3. Step 3: Cross multiply
    163,940.60x = 245,877.30 × 45,582.20
  4. Step 4: Simplify right side
    163,940.60x = 11,207,628,264.06
  5. Step 5: Solve for x
    x = 11,207,628,264.06/163,940.60
  6. Step 6: Final answer
    x = 68,363.96

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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.