Home / 156,934.11-216,566.49-85,315.94

Finding the Fourth Proportional to 156,934.11, 216,566.49 and 85,315.94

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Solution

The fourth proportional to 156,934.11, 216,566.49 and 85,315.94 is: 117,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.11 : 216,566.49 = 85,315.94 : x
  2. Step 2: Convert to fraction form
    156,934.11/216,566.49 = 85,315.94/x
  3. Step 3: Cross multiply
    156,934.11x = 216,566.49 × 85,315.94
  4. Step 4: Simplify right side
    156,934.11x = 18,476,573,666.85
  5. Step 5: Solve for x
    x = 18,476,573,666.85/156,934.11
  6. Step 6: Final answer
    x = 117,734.59

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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.