Home / 125,118.42-172,661.76-68,529.84

Finding the Fourth Proportional to 125,118.42, 172,661.76 and 68,529.84

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Solution

The fourth proportional to 125,118.42, 172,661.76 and 68,529.84 is: 94,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,118.42 : 172,661.76 = 68,529.84 : x
  2. Step 2: Convert to fraction form
    125,118.42/172,661.76 = 68,529.84/x
  3. Step 3: Cross multiply
    125,118.42x = 172,661.76 × 68,529.84
  4. Step 4: Simplify right side
    125,118.42x = 11,832,482,786.92
  5. Step 5: Solve for x
    x = 11,832,482,786.92/125,118.42
  6. Step 6: Final answer
    x = 94,570.27

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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.