Home / 221,166.32-331,875.47-86,212.82

Finding the Fourth Proportional to 221,166.32, 331,875.47 and 86,212.82

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Solution

The fourth proportional to 221,166.32, 331,875.47 and 86,212.82 is: 129,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,166.32 : 331,875.47 = 86,212.82 : x
  2. Step 2: Convert to fraction form
    221,166.32/331,875.47 = 86,212.82/x
  3. Step 3: Cross multiply
    221,166.32x = 331,875.47 × 86,212.82
  4. Step 4: Simplify right side
    221,166.32x = 28,611,920,556.15
  5. Step 5: Solve for x
    x = 28,611,920,556.15/221,166.32
  6. Step 6: Final answer
    x = 129,368.35

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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.