Home / 125,210.84-172,792.32-68,621

Finding the Fourth Proportional to 125,210.84, 172,792.32 and 68,621

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Solution

The fourth proportional to 125,210.84, 172,792.32 and 68,621 is: 94,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,210.84 : 172,792.32 = 68,621 : x
  2. Step 2: Convert to fraction form
    125,210.84/172,792.32 = 68,621/x
  3. Step 3: Cross multiply
    125,210.84x = 172,792.32 × 68,621
  4. Step 4: Simplify right side
    125,210.84x = 11,857,181,790.72
  5. Step 5: Solve for x
    x = 11,857,181,790.72/125,210.84
  6. Step 6: Final answer
    x = 94,697.73

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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.