Home / 126,935.70-190,403.55-74,447.70

Finding the Fourth Proportional to 126,935.70, 190,403.55 and 74,447.70

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Solution

The fourth proportional to 126,935.70, 190,403.55 and 74,447.70 is: 111,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,935.70 : 190,403.55 = 74,447.70 : x
  2. Step 2: Convert to fraction form
    126,935.70/190,403.55 = 74,447.70/x
  3. Step 3: Cross multiply
    126,935.70x = 190,403.55 × 74,447.70
  4. Step 4: Simplify right side
    126,935.70x = 14,175,106,369.34
  5. Step 5: Solve for x
    x = 14,175,106,369.34/126,935.70
  6. Step 6: Final answer
    x = 111,671.55

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1.5x scale

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.