Home / 137,769.59-190,150.02-79,628.81

Finding the Fourth Proportional to 137,769.59, 190,150.02 and 79,628.81

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Solution

The fourth proportional to 137,769.59, 190,150.02 and 79,628.81 is: 109,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,769.59 : 190,150.02 = 79,628.81 : x
  2. Step 2: Convert to fraction form
    137,769.59/190,150.02 = 79,628.81/x
  3. Step 3: Cross multiply
    137,769.59x = 190,150.02 × 79,628.81
  4. Step 4: Simplify right side
    137,769.59x = 15,141,418,863.33
  5. Step 5: Solve for x
    x = 15,141,418,863.33/137,769.59
  6. Step 6: Final answer
    x = 109,903.93

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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.