Home / 124,787.78-172,206.72-68,199.14

Finding the Fourth Proportional to 124,787.78, 172,206.72 and 68,199.14

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Solution

The fourth proportional to 124,787.78, 172,206.72 and 68,199.14 is: 94,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,787.78 : 172,206.72 = 68,199.14 : x
  2. Step 2: Convert to fraction form
    124,787.78/172,206.72 = 68,199.14/x
  3. Step 3: Cross multiply
    124,787.78x = 172,206.72 × 68,199.14
  4. Step 4: Simplify right side
    124,787.78x = 11,744,350,206.22
  5. Step 5: Solve for x
    x = 11,744,350,206.22/124,787.78
  6. Step 6: Final answer
    x = 94,114.59

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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.