Home / 125,081.09-172,612.01-67,720.44

Finding the Fourth Proportional to 125,081.09, 172,612.01 and 67,720.44

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Solution

The fourth proportional to 125,081.09, 172,612.01 and 67,720.44 is: 93,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,081.09 : 172,612.01 = 67,720.44 : x
  2. Step 2: Convert to fraction form
    125,081.09/172,612.01 = 67,720.44/x
  3. Step 3: Cross multiply
    125,081.09x = 172,612.01 × 67,720.44
  4. Step 4: Simplify right side
    125,081.09x = 11,689,360,927.88
  5. Step 5: Solve for x
    x = 11,689,360,927.88/125,081.09
  6. Step 6: Final answer
    x = 93,454.27

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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.