Home / 96,916.08-133,818.84-78,137.04

Finding the Fourth Proportional to 96,916.08, 133,818.84 and 78,137.04

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Solution

The fourth proportional to 96,916.08, 133,818.84 and 78,137.04 is: 107,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,916.08 : 133,818.84 = 78,137.04 : x
  2. Step 2: Convert to fraction form
    96,916.08/133,818.84 = 78,137.04/x
  3. Step 3: Cross multiply
    96,916.08x = 133,818.84 × 78,137.04
  4. Step 4: Simplify right side
    96,916.08x = 10,456,208,053.83
  5. Step 5: Solve for x
    x = 10,456,208,053.83/96,916.08
  6. Step 6: Final answer
    x = 107,889.30

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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.