Home / 136,895.16-188,914.86-79,542.84

Finding the Fourth Proportional to 136,895.16, 188,914.86 and 79,542.84

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Solution

The fourth proportional to 136,895.16, 188,914.86 and 79,542.84 is: 109,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,895.16 : 188,914.86 = 79,542.84 : x
  2. Step 2: Convert to fraction form
    136,895.16/188,914.86 = 79,542.84/x
  3. Step 3: Cross multiply
    136,895.16x = 188,914.86 × 79,542.84
  4. Step 4: Simplify right side
    136,895.16x = 15,026,824,482.60
  5. Step 5: Solve for x
    x = 15,026,824,482.60/136,895.16
  6. Step 6: Final answer
    x = 109,768.85

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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.