Home / 99,942.63-137,907.51-64,181.08

Finding the Fourth Proportional to 99,942.63, 137,907.51 and 64,181.08

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Solution

The fourth proportional to 99,942.63, 137,907.51 and 64,181.08 is: 88,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,942.63 : 137,907.51 = 64,181.08 : x
  2. Step 2: Convert to fraction form
    99,942.63/137,907.51 = 64,181.08/x
  3. Step 3: Cross multiply
    99,942.63x = 137,907.51 × 64,181.08
  4. Step 4: Simplify right side
    99,942.63x = 8,851,053,612.50
  5. Step 5: Solve for x
    x = 8,851,053,612.50/99,942.63
  6. Step 6: Final answer
    x = 88,561.34

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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.