Home / 136,693.04-188,513.60-85,711.33

Finding the Fourth Proportional to 136,693.04, 188,513.60 and 85,711.33

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Solution

The fourth proportional to 136,693.04, 188,513.60 and 85,711.33 is: 118,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,693.04 : 188,513.60 = 85,711.33 : x
  2. Step 2: Convert to fraction form
    136,693.04/188,513.60 = 85,711.33/x
  3. Step 3: Cross multiply
    136,693.04x = 188,513.60 × 85,711.33
  4. Step 4: Simplify right side
    136,693.04x = 16,157,751,122.08
  5. Step 5: Solve for x
    x = 16,157,751,122.08/136,693.04
  6. Step 6: Final answer
    x = 118,204.64

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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.