Home / 156,934.06-216,566.44-85,315.88

Finding the Fourth Proportional to 156,934.06, 216,566.44 and 85,315.88

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Solution

The fourth proportional to 156,934.06, 216,566.44 and 85,315.88 is: 117,734.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.06 : 216,566.44 = 85,315.88 : x
  2. Step 2: Convert to fraction form
    156,934.06/216,566.44 = 85,315.88/x
  3. Step 3: Cross multiply
    156,934.06x = 216,566.44 × 85,315.88
  4. Step 4: Simplify right side
    156,934.06x = 18,476,556,407.07
  5. Step 5: Solve for x
    x = 18,476,556,407.07/156,934.06
  6. Step 6: Final answer
    x = 117,734.52

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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.