Home / 109,486.88-151,132.96-71,763.56

Finding the Fourth Proportional to 109,486.88, 151,132.96 and 71,763.56

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Solution

The fourth proportional to 109,486.88, 151,132.96 and 71,763.56 is: 99,060.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,486.88 : 151,132.96 = 71,763.56 : x
  2. Step 2: Convert to fraction form
    109,486.88/151,132.96 = 71,763.56/x
  3. Step 3: Cross multiply
    109,486.88x = 151,132.96 × 71,763.56
  4. Step 4: Simplify right side
    109,486.88x = 10,845,839,242.94
  5. Step 5: Solve for x
    x = 10,845,839,242.94/109,486.88
  6. Step 6: Final answer
    x = 99,060.63

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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.