Home / 211,563.18-291,898.92-136,155.42

Finding the Fourth Proportional to 211,563.18, 291,898.92 and 136,155.42

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Solution

The fourth proportional to 211,563.18, 291,898.92 and 136,155.42 is: 187,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,563.18 : 291,898.92 = 136,155.42 : x
  2. Step 2: Convert to fraction form
    211,563.18/291,898.92 = 136,155.42/x
  3. Step 3: Cross multiply
    211,563.18x = 291,898.92 × 136,155.42
  4. Step 4: Simplify right side
    211,563.18x = 39,743,620,050.15
  5. Step 5: Solve for x
    x = 39,743,620,050.15/211,563.18
  6. Step 6: Final answer
    x = 187,856.98

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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.