Home / 117,966.40-177,295.20-115,892.80

Finding the Fourth Proportional to 117,966.40, 177,295.20 and 115,892.80

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Solution

The fourth proportional to 117,966.40, 177,295.20 and 115,892.80 is: 174,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,966.40 : 177,295.20 = 115,892.80 : x
  2. Step 2: Convert to fraction form
    117,966.40/177,295.20 = 115,892.80/x
  3. Step 3: Cross multiply
    117,966.40x = 177,295.20 × 115,892.80
  4. Step 4: Simplify right side
    117,966.40x = 20,547,237,154.56
  5. Step 5: Solve for x
    x = 20,547,237,154.56/117,966.40
  6. Step 6: Final answer
    x = 174,178.73

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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.