Home / 156,876.60-216,491.37-85,256.62

Finding the Fourth Proportional to 156,876.60, 216,491.37 and 85,256.62

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Solution

The fourth proportional to 156,876.60, 216,491.37 and 85,256.62 is: 117,655.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,876.60 : 216,491.37 = 85,256.62 : x
  2. Step 2: Convert to fraction form
    156,876.60/216,491.37 = 85,256.62/x
  3. Step 3: Cross multiply
    156,876.60x = 216,491.37 × 85,256.62
  4. Step 4: Simplify right side
    156,876.60x = 18,457,321,382.91
  5. Step 5: Solve for x
    x = 18,457,321,382.91/156,876.60
  6. Step 6: Final answer
    x = 117,655.04

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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.