Home / 145,283.64-200,469.60-81,609.24

Finding the Fourth Proportional to 145,283.64, 200,469.60 and 81,609.24

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Solution

The fourth proportional to 145,283.64, 200,469.60 and 81,609.24 is: 112,608.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,283.64 : 200,469.60 = 81,609.24 : x
  2. Step 2: Convert to fraction form
    145,283.64/200,469.60 = 81,609.24/x
  3. Step 3: Cross multiply
    145,283.64x = 200,469.60 × 81,609.24
  4. Step 4: Simplify right side
    145,283.64x = 16,360,171,699.10
  5. Step 5: Solve for x
    x = 16,360,171,699.10/145,283.64
  6. Step 6: Final answer
    x = 112,608.49

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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.