Home / 105,517.18-145,613.70-57,770.52

Finding the Fourth Proportional to 105,517.18, 145,613.70 and 57,770.52

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Solution

The fourth proportional to 105,517.18, 145,613.70 and 57,770.52 is: 79,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,517.18 : 145,613.70 = 57,770.52 : x
  2. Step 2: Convert to fraction form
    105,517.18/145,613.70 = 57,770.52/x
  3. Step 3: Cross multiply
    105,517.18x = 145,613.70 × 57,770.52
  4. Step 4: Simplify right side
    105,517.18x = 8,412,178,622.07
  5. Step 5: Solve for x
    x = 8,412,178,622.07/105,517.18
  6. Step 6: Final answer
    x = 79,723.31

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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.