Home / 105,532.08-145,634.50-57,134.52

Finding the Fourth Proportional to 105,532.08, 145,634.50 and 57,134.52

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Solution

The fourth proportional to 105,532.08, 145,634.50 and 57,134.52 is: 78,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,532.08 : 145,634.50 = 57,134.52 : x
  2. Step 2: Convert to fraction form
    105,532.08/145,634.50 = 57,134.52/x
  3. Step 3: Cross multiply
    105,532.08x = 145,634.50 × 57,134.52
  4. Step 4: Simplify right side
    105,532.08x = 8,320,756,524.77
  5. Step 5: Solve for x
    x = 8,320,756,524.77/105,532.08
  6. Step 6: Final answer
    x = 78,845.76

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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.