Home / 104,903.78-144,768.88-57,157.12

Finding the Fourth Proportional to 104,903.78, 144,768.88 and 57,157.12

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Solution

The fourth proportional to 104,903.78, 144,768.88 and 57,157.12 is: 78,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.78 : 144,768.88 = 57,157.12 : x
  2. Step 2: Convert to fraction form
    104,903.78/144,768.88 = 57,157.12/x
  3. Step 3: Cross multiply
    104,903.78x = 144,768.88 × 57,157.12
  4. Step 4: Simplify right side
    104,903.78x = 8,274,572,246.43
  5. Step 5: Solve for x
    x = 8,274,572,246.43/104,903.78
  6. Step 6: Final answer
    x = 78,877.73

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1.5x scale

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.