Home / 140,492.90-193,880.13-76,830.73

Finding the Fourth Proportional to 140,492.90, 193,880.13 and 76,830.73

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Solution

The fourth proportional to 140,492.90, 193,880.13 and 76,830.73 is: 106,026.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,492.90 : 193,880.13 = 76,830.73 : x
  2. Step 2: Convert to fraction form
    140,492.90/193,880.13 = 76,830.73/x
  3. Step 3: Cross multiply
    140,492.90x = 193,880.13 × 76,830.73
  4. Step 4: Simplify right side
    140,492.90x = 14,895,951,920.39
  5. Step 5: Solve for x
    x = 14,895,951,920.39/140,492.90
  6. Step 6: Final answer
    x = 106,026.37

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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.