Home / 138,050.97-190,464.54-112,513.46

Finding the Fourth Proportional to 138,050.97, 190,464.54 and 112,513.46

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Solution

The fourth proportional to 138,050.97, 190,464.54 and 112,513.46 is: 155,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,050.97 : 190,464.54 = 112,513.46 : x
  2. Step 2: Convert to fraction form
    138,050.97/190,464.54 = 112,513.46/x
  3. Step 3: Cross multiply
    138,050.97x = 190,464.54 × 112,513.46
  4. Step 4: Simplify right side
    138,050.97x = 21,429,823,450.39
  5. Step 5: Solve for x
    x = 21,429,823,450.39/138,050.97
  6. Step 6: Final answer
    x = 155,231.24

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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.