Home / 100,924.10-139,274.50-60,636.82

Finding the Fourth Proportional to 100,924.10, 139,274.50 and 60,636.82

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Solution

The fourth proportional to 100,924.10, 139,274.50 and 60,636.82 is: 83,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,924.10 : 139,274.50 = 60,636.82 : x
  2. Step 2: Convert to fraction form
    100,924.10/139,274.50 = 60,636.82/x
  3. Step 3: Cross multiply
    100,924.10x = 139,274.50 × 60,636.82
  4. Step 4: Simplify right side
    100,924.10x = 8,445,162,787.09
  5. Step 5: Solve for x
    x = 8,445,162,787.09/100,924.10
  6. Step 6: Final answer
    x = 83,678.36

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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.