Home / 105,195.06-145,171.74-57,448.02

Finding the Fourth Proportional to 105,195.06, 145,171.74 and 57,448.02

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Solution

The fourth proportional to 105,195.06, 145,171.74 and 57,448.02 is: 79,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,195.06 : 145,171.74 = 57,448.02 : x
  2. Step 2: Convert to fraction form
    105,195.06/145,171.74 = 57,448.02/x
  3. Step 3: Cross multiply
    105,195.06x = 145,171.74 × 57,448.02
  4. Step 4: Simplify right side
    105,195.06x = 8,339,829,022.95
  5. Step 5: Solve for x
    x = 8,339,829,022.95/105,195.06
  6. Step 6: Final answer
    x = 79,279.66

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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.