Home / 125,084.25-172,643.06-79,751.79

Finding the Fourth Proportional to 125,084.25, 172,643.06 and 79,751.79

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Solution

The fourth proportional to 125,084.25, 172,643.06 and 79,751.79 is: 110,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,084.25 : 172,643.06 = 79,751.79 : x
  2. Step 2: Convert to fraction form
    125,084.25/172,643.06 = 79,751.79/x
  3. Step 3: Cross multiply
    125,084.25x = 172,643.06 × 79,751.79
  4. Step 4: Simplify right side
    125,084.25x = 13,768,593,265.46
  5. Step 5: Solve for x
    x = 13,768,593,265.46/125,084.25
  6. Step 6: Final answer
    x = 110,074.56

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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.