Home / 124,680.25-172,115.37-79,420.27

Finding the Fourth Proportional to 124,680.25, 172,115.37 and 79,420.27

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Solution

The fourth proportional to 124,680.25, 172,115.37 and 79,420.27 is: 109,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,680.25 : 172,115.37 = 79,420.27 : x
  2. Step 2: Convert to fraction form
    124,680.25/172,115.37 = 79,420.27/x
  3. Step 3: Cross multiply
    124,680.25x = 172,115.37 × 79,420.27
  4. Step 4: Simplify right side
    124,680.25x = 13,669,449,156.55
  5. Step 5: Solve for x
    x = 13,669,449,156.55/124,680.25
  6. Step 6: Final answer
    x = 109,636.04

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1.5x scale

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.