Home / 221,085.17-331,697.84-78,927.35

Finding the Fourth Proportional to 221,085.17, 331,697.84 and 78,927.35

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Solution

The fourth proportional to 221,085.17, 331,697.84 and 78,927.35 is: 118,416.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,085.17 : 331,697.84 = 78,927.35 : x
  2. Step 2: Convert to fraction form
    221,085.17/331,697.84 = 78,927.35/x
  3. Step 3: Cross multiply
    221,085.17x = 331,697.84 × 78,927.35
  4. Step 4: Simplify right side
    221,085.17x = 26,180,029,458.80
  5. Step 5: Solve for x
    x = 26,180,029,458.80/221,085.17
  6. Step 6: Final answer
    x = 118,416.04

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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.