Home / 140,546.35-193,955.75-76,885.21

Finding the Fourth Proportional to 140,546.35, 193,955.75 and 76,885.21

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Solution

The fourth proportional to 140,546.35, 193,955.75 and 76,885.21 is: 106,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,546.35 : 193,955.75 = 76,885.21 : x
  2. Step 2: Convert to fraction form
    140,546.35/193,955.75 = 76,885.21/x
  3. Step 3: Cross multiply
    140,546.35x = 193,955.75 × 76,885.21
  4. Step 4: Simplify right side
    140,546.35x = 14,912,328,569.46
  5. Step 5: Solve for x
    x = 14,912,328,569.46/140,546.35
  6. Step 6: Final answer
    x = 106,102.57

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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.