Home / 126,919.71-175,056.05-91,146.47

Finding the Fourth Proportional to 126,919.71, 175,056.05 and 91,146.47

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Solution

The fourth proportional to 126,919.71, 175,056.05 and 91,146.47 is: 125,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,919.71 : 175,056.05 = 91,146.47 : x
  2. Step 2: Convert to fraction form
    126,919.71/175,056.05 = 91,146.47/x
  3. Step 3: Cross multiply
    126,919.71x = 175,056.05 × 91,146.47
  4. Step 4: Simplify right side
    126,919.71x = 15,955,740,362.23
  5. Step 5: Solve for x
    x = 15,955,740,362.23/126,919.71
  6. Step 6: Final answer
    x = 125,715.23

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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.