Home / 136,292.48-188,083.60-75,861.84

Finding the Fourth Proportional to 136,292.48, 188,083.60 and 75,861.84

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Solution

The fourth proportional to 136,292.48, 188,083.60 and 75,861.84 is: 104,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,292.48 : 188,083.60 = 75,861.84 : x
  2. Step 2: Convert to fraction form
    136,292.48/188,083.60 = 75,861.84/x
  3. Step 3: Cross multiply
    136,292.48x = 188,083.60 × 75,861.84
  4. Step 4: Simplify right side
    136,292.48x = 14,268,367,969.82
  5. Step 5: Solve for x
    x = 14,268,367,969.82/136,292.48
  6. Step 6: Final answer
    x = 104,689.33

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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.