Home / 145,659.16-201,028.80-82,009.36

Finding the Fourth Proportional to 145,659.16, 201,028.80 and 82,009.36

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Solution

The fourth proportional to 145,659.16, 201,028.80 and 82,009.36 is: 113,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,659.16 : 201,028.80 = 82,009.36 : x
  2. Step 2: Convert to fraction form
    145,659.16/201,028.80 = 82,009.36/x
  3. Step 3: Cross multiply
    145,659.16x = 201,028.80 × 82,009.36
  4. Step 4: Simplify right side
    145,659.16x = 16,486,243,229.57
  5. Step 5: Solve for x
    x = 16,486,243,229.57/145,659.16
  6. Step 6: Final answer
    x = 113,183.70

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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.