Home / 99,930.19-137,840.25-76,004.41

Finding the Fourth Proportional to 99,930.19, 137,840.25 and 76,004.41

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Solution

The fourth proportional to 99,930.19, 137,840.25 and 76,004.41 is: 104,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,930.19 : 137,840.25 = 76,004.41 : x
  2. Step 2: Convert to fraction form
    99,930.19/137,840.25 = 76,004.41/x
  3. Step 3: Cross multiply
    99,930.19x = 137,840.25 × 76,004.41
  4. Step 4: Simplify right side
    99,930.19x = 10,476,466,875.50
  5. Step 5: Solve for x
    x = 10,476,466,875.50/99,930.19
  6. Step 6: Final answer
    x = 104,837.86

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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.