Home / 145,917.14-201,441.78-103,576.82

Finding the Fourth Proportional to 145,917.14, 201,441.78 and 103,576.82

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Solution

The fourth proportional to 145,917.14, 201,441.78 and 103,576.82 is: 142,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,917.14 : 201,441.78 = 103,576.82 : x
  2. Step 2: Convert to fraction form
    145,917.14/201,441.78 = 103,576.82/x
  3. Step 3: Cross multiply
    145,917.14x = 201,441.78 × 103,576.82
  4. Step 4: Simplify right side
    145,917.14x = 20,864,697,980.33
  5. Step 5: Solve for x
    x = 20,864,697,980.33/145,917.14
  6. Step 6: Final answer
    x = 142,990.05

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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.