Home / 105,682.32-145,840.68-57,934.80

Finding the Fourth Proportional to 105,682.32, 145,840.68 and 57,934.80

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Solution

The fourth proportional to 105,682.32, 145,840.68 and 57,934.80 is: 79,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,682.32 : 145,840.68 = 57,934.80 : x
  2. Step 2: Convert to fraction form
    105,682.32/145,840.68 = 57,934.80/x
  3. Step 3: Cross multiply
    105,682.32x = 145,840.68 × 57,934.80
  4. Step 4: Simplify right side
    105,682.32x = 8,449,250,627.66
  5. Step 5: Solve for x
    x = 8,449,250,627.66/105,682.32
  6. Step 6: Final answer
    x = 79,949.52

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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.