Home / 137,932.42-190,433.88-90,266.35

Finding the Fourth Proportional to 137,932.42, 190,433.88 and 90,266.35

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Solution

The fourth proportional to 137,932.42, 190,433.88 and 90,266.35 is: 124,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,932.42 : 190,433.88 = 90,266.35 : x
  2. Step 2: Convert to fraction form
    137,932.42/190,433.88 = 90,266.35/x
  3. Step 3: Cross multiply
    137,932.42x = 190,433.88 × 90,266.35
  4. Step 4: Simplify right side
    137,932.42x = 17,189,769,860.44
  5. Step 5: Solve for x
    x = 17,189,769,860.44/137,932.42
  6. Step 6: Final answer
    x = 124,624.58

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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.