Home / 126,926.40-190,159.20-103,425.60

Finding the Fourth Proportional to 126,926.40, 190,159.20 and 103,425.60

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Solution

The fourth proportional to 126,926.40, 190,159.20 and 103,425.60 is: 154,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,926.40 : 190,159.20 = 103,425.60 : x
  2. Step 2: Convert to fraction form
    126,926.40/190,159.20 = 103,425.60/x
  3. Step 3: Cross multiply
    126,926.40x = 190,159.20 × 103,425.60
  4. Step 4: Simplify right side
    126,926.40x = 19,667,329,355.52
  5. Step 5: Solve for x
    x = 19,667,329,355.52/126,926.40
  6. Step 6: Final answer
    x = 154,950.66

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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.