Home / 140,282.48-193,586.70-76,620.50

Finding the Fourth Proportional to 140,282.48, 193,586.70 and 76,620.50

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Solution

The fourth proportional to 140,282.48, 193,586.70 and 76,620.50 is: 105,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,282.48 : 193,586.70 = 76,620.50 : x
  2. Step 2: Convert to fraction form
    140,282.48/193,586.70 = 76,620.50/x
  3. Step 3: Cross multiply
    140,282.48x = 193,586.70 × 76,620.50
  4. Step 4: Simplify right side
    140,282.48x = 14,832,709,747.35
  5. Step 5: Solve for x
    x = 14,832,709,747.35/140,282.48
  6. Step 6: Final answer
    x = 105,734.58

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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.