Home / 140,306.18-193,626.78-76,648.08

Finding the Fourth Proportional to 140,306.18, 193,626.78 and 76,648.08

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Solution

The fourth proportional to 140,306.18, 193,626.78 and 76,648.08 is: 105,776.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,306.18 : 193,626.78 = 76,648.08 : x
  2. Step 2: Convert to fraction form
    140,306.18/193,626.78 = 76,648.08/x
  3. Step 3: Cross multiply
    140,306.18x = 193,626.78 × 76,648.08
  4. Step 4: Simplify right side
    140,306.18x = 14,841,120,923.58
  5. Step 5: Solve for x
    x = 14,841,120,923.58/140,306.18
  6. Step 6: Final answer
    x = 105,776.67

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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.