Home / 140,766.40-194,258.28-77,104

Finding the Fourth Proportional to 140,766.40, 194,258.28 and 77,104

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Solution

The fourth proportional to 140,766.40, 194,258.28 and 77,104 is: 106,403.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,766.40 : 194,258.28 = 77,104 : x
  2. Step 2: Convert to fraction form
    140,766.40/194,258.28 = 77,104/x
  3. Step 3: Cross multiply
    140,766.40x = 194,258.28 × 77,104
  4. Step 4: Simplify right side
    140,766.40x = 14,978,090,421.12
  5. Step 5: Solve for x
    x = 14,978,090,421.12/140,766.40
  6. Step 6: Final answer
    x = 106,403.87

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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.