Home / 133,109.58-183,698.66-72,685.84

Finding the Fourth Proportional to 133,109.58, 183,698.66 and 72,685.84

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Solution

The fourth proportional to 133,109.58, 183,698.66 and 72,685.84 is: 100,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.58 : 183,698.66 = 72,685.84 : x
  2. Step 2: Convert to fraction form
    133,109.58/183,698.66 = 72,685.84/x
  3. Step 3: Cross multiply
    133,109.58x = 183,698.66 × 72,685.84
  4. Step 4: Simplify right side
    133,109.58x = 13,352,291,408.97
  5. Step 5: Solve for x
    x = 13,352,291,408.97/133,109.58
  6. Step 6: Final answer
    x = 100,310.52

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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.