Home / 126,994.65-190,478.61-52,122.71

Finding the Fourth Proportional to 126,994.65, 190,478.61 and 52,122.71

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Solution

The fourth proportional to 126,994.65, 190,478.61 and 52,122.71 is: 78,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,994.65 : 190,478.61 = 52,122.71 : x
  2. Step 2: Convert to fraction form
    126,994.65/190,478.61 = 52,122.71/x
  3. Step 3: Cross multiply
    126,994.65x = 190,478.61 × 52,122.71
  4. Step 4: Simplify right side
    126,994.65x = 9,928,260,397.84
  5. Step 5: Solve for x
    x = 9,928,260,397.84/126,994.65
  6. Step 6: Final answer
    x = 78,178.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.