Home / 105,043.20-157,433.40-52,467.36

Finding the Fourth Proportional to 105,043.20, 157,433.40 and 52,467.36

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Solution

The fourth proportional to 105,043.20, 157,433.40 and 52,467.36 is: 78,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,043.20 : 157,433.40 = 52,467.36 : x
  2. Step 2: Convert to fraction form
    105,043.20/157,433.40 = 52,467.36/x
  3. Step 3: Cross multiply
    105,043.20x = 157,433.40 × 52,467.36
  4. Step 4: Simplify right side
    105,043.20x = 8,260,114,873.82
  5. Step 5: Solve for x
    x = 8,260,114,873.82/105,043.20
  6. Step 6: Final answer
    x = 78,635.41

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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.