Home / 105,575.85-145,694.43-57,177.63

Finding the Fourth Proportional to 105,575.85, 145,694.43 and 57,177.63

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Solution

The fourth proportional to 105,575.85, 145,694.43 and 57,177.63 is: 78,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,575.85 : 145,694.43 = 57,177.63 : x
  2. Step 2: Convert to fraction form
    105,575.85/145,694.43 = 57,177.63/x
  3. Step 3: Cross multiply
    105,575.85x = 145,694.43 × 57,177.63
  4. Step 4: Simplify right side
    105,575.85x = 8,330,462,211.60
  5. Step 5: Solve for x
    x = 8,330,462,211.60/105,575.85
  6. Step 6: Final answer
    x = 78,905.00

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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.