Home / 78,832.10-118,075.35-68,464.10

Finding the Fourth Proportional to 78,832.10, 118,075.35 and 68,464.10

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Solution

The fourth proportional to 78,832.10, 118,075.35 and 68,464.10 is: 102,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,832.10 : 118,075.35 = 68,464.10 : x
  2. Step 2: Convert to fraction form
    78,832.10/118,075.35 = 68,464.10/x
  3. Step 3: Cross multiply
    78,832.10x = 118,075.35 × 68,464.10
  4. Step 4: Simplify right side
    78,832.10x = 8,083,922,569.94
  5. Step 5: Solve for x
    x = 8,083,922,569.94/78,832.10
  6. Step 6: Final answer
    x = 102,546.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.