Home / 140,119.20-193,364.15-76,456.98

Finding the Fourth Proportional to 140,119.20, 193,364.15 and 76,456.98

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Solution

The fourth proportional to 140,119.20, 193,364.15 and 76,456.98 is: 105,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,119.20 : 193,364.15 = 76,456.98 : x
  2. Step 2: Convert to fraction form
    140,119.20/193,364.15 = 76,456.98/x
  3. Step 3: Cross multiply
    140,119.20x = 193,364.15 × 76,456.98
  4. Step 4: Simplify right side
    140,119.20x = 14,784,038,566.98
  5. Step 5: Solve for x
    x = 14,784,038,566.98/140,119.20
  6. Step 6: Final answer
    x = 105,510.44

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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.