Home / 105,194.83-145,169.40-57,448.18

Finding the Fourth Proportional to 105,194.83, 145,169.40 and 57,448.18

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Solution

The fourth proportional to 105,194.83, 145,169.40 and 57,448.18 is: 79,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,194.83 : 145,169.40 = 57,448.18 : x
  2. Step 2: Convert to fraction form
    105,194.83/145,169.40 = 57,448.18/x
  3. Step 3: Cross multiply
    105,194.83x = 145,169.40 × 57,448.18
  4. Step 4: Simplify right side
    105,194.83x = 8,339,717,458.77
  5. Step 5: Solve for x
    x = 8,339,717,458.77/105,194.83
  6. Step 6: Final answer
    x = 79,278.78

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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.