Home / 126,907.40-190,227.14-42,587.61

Finding the Fourth Proportional to 126,907.40, 190,227.14 and 42,587.61

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Solution

The fourth proportional to 126,907.40, 190,227.14 and 42,587.61 is: 63,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,907.40 : 190,227.14 = 42,587.61 : x
  2. Step 2: Convert to fraction form
    126,907.40/190,227.14 = 42,587.61/x
  3. Step 3: Cross multiply
    126,907.40x = 190,227.14 × 42,587.61
  4. Step 4: Simplify right side
    126,907.40x = 8,101,319,036.80
  5. Step 5: Solve for x
    x = 8,101,319,036.80/126,907.40
  6. Step 6: Final answer
    x = 63,836.46

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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.