Home / 156,984.96-216,636.77-85,364.36

Finding the Fourth Proportional to 156,984.96, 216,636.77 and 85,364.36

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Solution

The fourth proportional to 156,984.96, 216,636.77 and 85,364.36 is: 117,801.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.96 : 216,636.77 = 85,364.36 : x
  2. Step 2: Convert to fraction form
    156,984.96/216,636.77 = 85,364.36/x
  3. Step 3: Cross multiply
    156,984.96x = 216,636.77 × 85,364.36
  4. Step 4: Simplify right side
    156,984.96x = 18,493,058,624.54
  5. Step 5: Solve for x
    x = 18,493,058,624.54/156,984.96
  6. Step 6: Final answer
    x = 117,801.47

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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.