Home / 156,782.82-216,364.32-85,166.94

Finding the Fourth Proportional to 156,782.82, 216,364.32 and 85,166.94

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Solution

The fourth proportional to 156,782.82, 216,364.32 and 85,166.94 is: 117,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,782.82 : 216,364.32 = 85,166.94 : x
  2. Step 2: Convert to fraction form
    156,782.82/216,364.32 = 85,166.94/x
  3. Step 3: Cross multiply
    156,782.82x = 216,364.32 × 85,166.94
  4. Step 4: Simplify right side
    156,782.82x = 18,427,087,059.58
  5. Step 5: Solve for x
    x = 18,427,087,059.58/156,782.82
  6. Step 6: Final answer
    x = 117,532.57

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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.