Home / 156,664.52-216,197.28-85,044.56

Finding the Fourth Proportional to 156,664.52, 216,197.28 and 85,044.56

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Solution

The fourth proportional to 156,664.52, 216,197.28 and 85,044.56 is: 117,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,664.52 : 216,197.28 = 85,044.56 : x
  2. Step 2: Convert to fraction form
    156,664.52/216,197.28 = 85,044.56/x
  3. Step 3: Cross multiply
    156,664.52x = 216,197.28 × 85,044.56
  4. Step 4: Simplify right side
    156,664.52x = 18,386,402,550.80
  5. Step 5: Solve for x
    x = 18,386,402,550.80/156,664.52
  6. Step 6: Final answer
    x = 117,361.62

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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.