Home / 191,311.42-286,824.30-131,977.84

Finding the Fourth Proportional to 191,311.42, 286,824.30 and 131,977.84

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Solution

The fourth proportional to 191,311.42, 286,824.30 and 131,977.84 is: 197,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,311.42 : 286,824.30 = 131,977.84 : x
  2. Step 2: Convert to fraction form
    191,311.42/286,824.30 = 131,977.84/x
  3. Step 3: Cross multiply
    191,311.42x = 286,824.30 × 131,977.84
  4. Step 4: Simplify right side
    191,311.42x = 37,854,451,573.51
  5. Step 5: Solve for x
    x = 37,854,451,573.51/191,311.42
  6. Step 6: Final answer
    x = 197,868.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.