Home / 221,038.35-331,609.37-87,926.19

Finding the Fourth Proportional to 221,038.35, 331,609.37 and 87,926.19

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Solution

The fourth proportional to 221,038.35, 331,609.37 and 87,926.19 is: 131,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,038.35 : 331,609.37 = 87,926.19 : x
  2. Step 2: Convert to fraction form
    221,038.35/331,609.37 = 87,926.19/x
  3. Step 3: Cross multiply
    221,038.35x = 331,609.37 × 87,926.19
  4. Step 4: Simplify right side
    221,038.35x = 29,157,148,472.40
  5. Step 5: Solve for x
    x = 29,157,148,472.40/221,038.35
  6. Step 6: Final answer
    x = 131,909.91

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1.5x scale

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.