Home / 145,708.44-201,072.24-81,176.16

Finding the Fourth Proportional to 145,708.44, 201,072.24 and 81,176.16

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Solution

The fourth proportional to 145,708.44, 201,072.24 and 81,176.16 is: 112,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,708.44 : 201,072.24 = 81,176.16 : x
  2. Step 2: Convert to fraction form
    145,708.44/201,072.24 = 81,176.16/x
  3. Step 3: Cross multiply
    145,708.44x = 201,072.24 × 81,176.16
  4. Step 4: Simplify right side
    145,708.44x = 16,322,272,325.80
  5. Step 5: Solve for x
    x = 16,322,272,325.80/145,708.44
  6. Step 6: Final answer
    x = 112,020.09

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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.