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Finding the Fourth Proportional to 117,630.60, 176,445.90 and 115,297.80

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Solution

The fourth proportional to 117,630.60, 176,445.90 and 115,297.80 is: 172,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,630.60 : 176,445.90 = 115,297.80 : x
  2. Step 2: Convert to fraction form
    117,630.60/176,445.90 = 115,297.80/x
  3. Step 3: Cross multiply
    117,630.60x = 176,445.90 × 115,297.80
  4. Step 4: Simplify right side
    117,630.60x = 20,343,824,089.02
  5. Step 5: Solve for x
    x = 20,343,824,089.02/117,630.60
  6. Step 6: Final answer
    x = 172,946.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.