Home / 99,917.40-149,852.10-57,706.20

Finding the Fourth Proportional to 99,917.40, 149,852.10 and 57,706.20

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Solution

The fourth proportional to 99,917.40, 149,852.10 and 57,706.20 is: 86,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,917.40 : 149,852.10 = 57,706.20 : x
  2. Step 2: Convert to fraction form
    99,917.40/149,852.10 = 57,706.20/x
  3. Step 3: Cross multiply
    99,917.40x = 149,852.10 × 57,706.20
  4. Step 4: Simplify right side
    99,917.40x = 8,647,395,253.02
  5. Step 5: Solve for x
    x = 8,647,395,253.02/99,917.40
  6. Step 6: Final answer
    x = 86,545.44

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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.