Home / 105,531.56-145,604.67-67,827.68

Finding the Fourth Proportional to 105,531.56, 145,604.67 and 67,827.68

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Solution

The fourth proportional to 105,531.56, 145,604.67 and 67,827.68 is: 93,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,531.56 : 145,604.67 = 67,827.68 : x
  2. Step 2: Convert to fraction form
    105,531.56/145,604.67 = 67,827.68/x
  3. Step 3: Cross multiply
    105,531.56x = 145,604.67 × 67,827.68
  4. Step 4: Simplify right side
    105,531.56x = 9,876,026,235.24
  5. Step 5: Solve for x
    x = 9,876,026,235.24/105,531.56
  6. Step 6: Final answer
    x = 93,583.63

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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.