Home / 99,929.19-137,838.87-76,003.41

Finding the Fourth Proportional to 99,929.19, 137,838.87 and 76,003.41

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Solution

The fourth proportional to 99,929.19, 137,838.87 and 76,003.41 is: 104,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,929.19 : 137,838.87 = 76,003.41 : x
  2. Step 2: Convert to fraction form
    99,929.19/137,838.87 = 76,003.41/x
  3. Step 3: Cross multiply
    99,929.19x = 137,838.87 × 76,003.41
  4. Step 4: Simplify right side
    99,929.19x = 10,476,224,150.55
  5. Step 5: Solve for x
    x = 10,476,224,150.55/99,929.19
  6. Step 6: Final answer
    x = 104,836.48

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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.