Home / 156,892.29-216,511.38-85,272.29

Finding the Fourth Proportional to 156,892.29, 216,511.38 and 85,272.29

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Solution

The fourth proportional to 156,892.29, 216,511.38 and 85,272.29 is: 117,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,892.29 : 216,511.38 = 85,272.29 : x
  2. Step 2: Convert to fraction form
    156,892.29/216,511.38 = 85,272.29/x
  3. Step 3: Cross multiply
    156,892.29x = 216,511.38 × 85,272.29
  4. Step 4: Simplify right side
    156,892.29x = 18,462,422,130.90
  5. Step 5: Solve for x
    x = 18,462,422,130.90/156,892.29
  6. Step 6: Final answer
    x = 117,675.78

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1.5x scale

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.