Home / 105,382.26-145,425.69-57,634.56

Finding the Fourth Proportional to 105,382.26, 145,425.69 and 57,634.56

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Solution

The fourth proportional to 105,382.26, 145,425.69 and 57,634.56 is: 79,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,382.26 : 145,425.69 = 57,634.56 : x
  2. Step 2: Convert to fraction form
    105,382.26/145,425.69 = 57,634.56/x
  3. Step 3: Cross multiply
    105,382.26x = 145,425.69 × 57,634.56
  4. Step 4: Simplify right side
    105,382.26x = 8,381,545,655.85
  5. Step 5: Solve for x
    x = 8,381,545,655.85/105,382.26
  6. Step 6: Final answer
    x = 79,534.69

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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.