Home / 141,299.12-194,981.64-80,870.96

Finding the Fourth Proportional to 141,299.12, 194,981.64 and 80,870.96

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Solution

The fourth proportional to 141,299.12, 194,981.64 and 80,870.96 is: 111,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,299.12 : 194,981.64 = 80,870.96 : x
  2. Step 2: Convert to fraction form
    141,299.12/194,981.64 = 80,870.96/x
  3. Step 3: Cross multiply
    141,299.12x = 194,981.64 × 80,870.96
  4. Step 4: Simplify right side
    141,299.12x = 15,768,352,409.17
  5. Step 5: Solve for x
    x = 15,768,352,409.17/141,299.12
  6. Step 6: Final answer
    x = 111,595.55

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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.