Home / 136,218.42-187,965.09-75,773.79

Finding the Fourth Proportional to 136,218.42, 187,965.09 and 75,773.79

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Solution

The fourth proportional to 136,218.42, 187,965.09 and 75,773.79 is: 104,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,218.42 : 187,965.09 = 75,773.79 : x
  2. Step 2: Convert to fraction form
    136,218.42/187,965.09 = 75,773.79/x
  3. Step 3: Cross multiply
    136,218.42x = 187,965.09 × 75,773.79
  4. Step 4: Simplify right side
    136,218.42x = 14,242,827,256.99
  5. Step 5: Solve for x
    x = 14,242,827,256.99/136,218.42
  6. Step 6: Final answer
    x = 104,558.75

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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.