Home / 156,634.86-216,150.33-85,013.35

Finding the Fourth Proportional to 156,634.86, 216,150.33 and 85,013.35

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Solution

The fourth proportional to 156,634.86, 216,150.33 and 85,013.35 is: 117,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634.86 : 216,150.33 = 85,013.35 : x
  2. Step 2: Convert to fraction form
    156,634.86/216,150.33 = 85,013.35/x
  3. Step 3: Cross multiply
    156,634.86x = 216,150.33 × 85,013.35
  4. Step 4: Simplify right side
    156,634.86x = 18,375,662,151.09
  5. Step 5: Solve for x
    x = 18,375,662,151.09/156,634.86
  6. Step 6: Final answer
    x = 117,315.28

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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.