Home / 104,742.90-157,120.83-52,099.38

Finding the Fourth Proportional to 104,742.90, 157,120.83 and 52,099.38

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Solution

The fourth proportional to 104,742.90, 157,120.83 and 52,099.38 is: 78,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,742.90 : 157,120.83 = 52,099.38 : x
  2. Step 2: Convert to fraction form
    104,742.90/157,120.83 = 52,099.38/x
  3. Step 3: Cross multiply
    104,742.90x = 157,120.83 × 52,099.38
  4. Step 4: Simplify right side
    104,742.90x = 8,185,897,828.09
  5. Step 5: Solve for x
    x = 8,185,897,828.09/104,742.90
  6. Step 6: Final answer
    x = 78,152.29

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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.