Home / 156,892.57-216,513.20-85,272.77

Finding the Fourth Proportional to 156,892.57, 216,513.20 and 85,272.77

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Solution

The fourth proportional to 156,892.57, 216,513.20 and 85,272.77 is: 117,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,892.57 : 216,513.20 = 85,272.77 : x
  2. Step 2: Convert to fraction form
    156,892.57/216,513.20 = 85,272.77/x
  3. Step 3: Cross multiply
    156,892.57x = 216,513.20 × 85,272.77
  4. Step 4: Simplify right side
    156,892.57x = 18,462,680,305.56
  5. Step 5: Solve for x
    x = 18,462,680,305.56/156,892.57
  6. Step 6: Final answer
    x = 117,677.21

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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.