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Finding the Fourth Proportional to 117,820.30, 176,663.52 and 80,425.66

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Solution

The fourth proportional to 117,820.30, 176,663.52 and 80,425.66 is: 120,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,820.30 : 176,663.52 = 80,425.66 : x
  2. Step 2: Convert to fraction form
    117,820.30/176,663.52 = 80,425.66/x
  3. Step 3: Cross multiply
    117,820.30x = 176,663.52 × 80,425.66
  4. Step 4: Simplify right side
    117,820.30x = 14,208,280,193.92
  5. Step 5: Solve for x
    x = 14,208,280,193.92/117,820.30
  6. Step 6: Final answer
    x = 120,592.80

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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.