Home / 130,199.59-179,777.35-99,936.97

Finding the Fourth Proportional to 130,199.59, 179,777.35 and 99,936.97

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Solution

The fourth proportional to 130,199.59, 179,777.35 and 99,936.97 is: 137,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,199.59 : 179,777.35 = 99,936.97 : x
  2. Step 2: Convert to fraction form
    130,199.59/179,777.35 = 99,936.97/x
  3. Step 3: Cross multiply
    130,199.59x = 179,777.35 × 99,936.97
  4. Step 4: Simplify right side
    130,199.59x = 17,966,404,039.28
  5. Step 5: Solve for x
    x = 17,966,404,039.28/130,199.59
  6. Step 6: Final answer
    x = 137,991.25

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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.