Home / 156,892.15-216,511.19-85,272.18

Finding the Fourth Proportional to 156,892.15, 216,511.19 and 85,272.18

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Solution

The fourth proportional to 156,892.15, 216,511.19 and 85,272.18 is: 117,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,892.15 : 216,511.19 = 85,272.18 : x
  2. Step 2: Convert to fraction form
    156,892.15/216,511.19 = 85,272.18/x
  3. Step 3: Cross multiply
    156,892.15x = 216,511.19 × 85,272.18
  4. Step 4: Simplify right side
    156,892.15x = 18,462,381,165.69
  5. Step 5: Solve for x
    x = 18,462,381,165.69/156,892.15
  6. Step 6: Final answer
    x = 117,675.62

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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.