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Finding the Fourth Proportional to 163,851.60, 245,734.20 and 51,531.60

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Solution

The fourth proportional to 163,851.60, 245,734.20 and 51,531.60 is: 77,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,851.60 : 245,734.20 = 51,531.60 : x
  2. Step 2: Convert to fraction form
    163,851.60/245,734.20 = 51,531.60/x
  3. Step 3: Cross multiply
    163,851.60x = 245,734.20 × 51,531.60
  4. Step 4: Simplify right side
    163,851.60x = 12,663,076,500.72
  5. Step 5: Solve for x
    x = 12,663,076,500.72/163,851.60
  6. Step 6: Final answer
    x = 77,283.81

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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.