Home / 133,109.53-183,698.60-72,685.80

Finding the Fourth Proportional to 133,109.53, 183,698.60 and 72,685.80

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Solution

The fourth proportional to 133,109.53, 183,698.60 and 72,685.80 is: 100,310.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.53 : 183,698.60 = 72,685.80 : x
  2. Step 2: Convert to fraction form
    133,109.53/183,698.60 = 72,685.80/x
  3. Step 3: Cross multiply
    133,109.53x = 183,698.60 × 72,685.80
  4. Step 4: Simplify right side
    133,109.53x = 13,352,279,336.45
  5. Step 5: Solve for x
    x = 13,352,279,336.45/133,109.53
  6. Step 6: Final answer
    x = 100,310.47

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1.5x scale

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.