Home / 140,709.12-194,176.67-77,046.90

Finding the Fourth Proportional to 140,709.12, 194,176.67 and 77,046.90

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Solution

The fourth proportional to 140,709.12, 194,176.67 and 77,046.90 is: 106,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709.12 : 194,176.67 = 77,046.90 : x
  2. Step 2: Convert to fraction form
    140,709.12/194,176.67 = 77,046.90/x
  3. Step 3: Cross multiply
    140,709.12x = 194,176.67 × 77,046.90
  4. Step 4: Simplify right side
    140,709.12x = 14,960,710,090.59
  5. Step 5: Solve for x
    x = 14,960,710,090.59/140,709.12
  6. Step 6: Final answer
    x = 106,323.67

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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.