Home / 118,917.14-164,107.50-71,172.50

Finding the Fourth Proportional to 118,917.14, 164,107.50 and 71,172.50

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Solution

The fourth proportional to 118,917.14, 164,107.50 and 71,172.50 is: 98,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,917.14 : 164,107.50 = 71,172.50 : x
  2. Step 2: Convert to fraction form
    118,917.14/164,107.50 = 71,172.50/x
  3. Step 3: Cross multiply
    118,917.14x = 164,107.50 × 71,172.50
  4. Step 4: Simplify right side
    118,917.14x = 11,679,941,043.75
  5. Step 5: Solve for x
    x = 11,679,941,043.75/118,917.14
  6. Step 6: Final answer
    x = 98,219.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.