Home / 136,513.36-188,403.69-76,089.52

Finding the Fourth Proportional to 136,513.36, 188,403.69 and 76,089.52

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Solution

The fourth proportional to 136,513.36, 188,403.69 and 76,089.52 is: 105,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,513.36 : 188,403.69 = 76,089.52 : x
  2. Step 2: Convert to fraction form
    136,513.36/188,403.69 = 76,089.52/x
  3. Step 3: Cross multiply
    136,513.36x = 188,403.69 × 76,089.52
  4. Step 4: Simplify right side
    136,513.36x = 14,335,546,338.33
  5. Step 5: Solve for x
    x = 14,335,546,338.33/136,513.36
  6. Step 6: Final answer
    x = 105,012.04

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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.