Home / 104,899.28-144,762.72-57,154.64

Finding the Fourth Proportional to 104,899.28, 144,762.72 and 57,154.64

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Solution

The fourth proportional to 104,899.28, 144,762.72 and 57,154.64 is: 78,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,899.28 : 144,762.72 = 57,154.64 : x
  2. Step 2: Convert to fraction form
    104,899.28/144,762.72 = 57,154.64/x
  3. Step 3: Cross multiply
    104,899.28x = 144,762.72 × 57,154.64
  4. Step 4: Simplify right side
    104,899.28x = 8,273,861,147.02
  5. Step 5: Solve for x
    x = 8,273,861,147.02/104,899.28
  6. Step 6: Final answer
    x = 78,874.34

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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.