Home / 105,383.26-145,427.07-57,635.56

Finding the Fourth Proportional to 105,383.26, 145,427.07 and 57,635.56

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Solution

The fourth proportional to 105,383.26, 145,427.07 and 57,635.56 is: 79,536.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,383.26 : 145,427.07 = 57,635.56 : x
  2. Step 2: Convert to fraction form
    105,383.26/145,427.07 = 57,635.56/x
  3. Step 3: Cross multiply
    105,383.26x = 145,427.07 × 57,635.56
  4. Step 4: Simplify right side
    105,383.26x = 8,381,770,618.61
  5. Step 5: Solve for x
    x = 8,381,770,618.61/105,383.26
  6. Step 6: Final answer
    x = 79,536.07

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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.