Home / 156,636.15-216,158.04-85,016.18

Finding the Fourth Proportional to 156,636.15, 216,158.04 and 85,016.18

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Solution

The fourth proportional to 156,636.15, 216,158.04 and 85,016.18 is: 117,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.15 : 216,158.04 = 85,016.18 : x
  2. Step 2: Convert to fraction form
    156,636.15/216,158.04 = 85,016.18/x
  3. Step 3: Cross multiply
    156,636.15x = 216,158.04 × 85,016.18
  4. Step 4: Simplify right side
    156,636.15x = 18,376,930,837.09
  5. Step 5: Solve for x
    x = 18,376,930,837.09/156,636.15
  6. Step 6: Final answer
    x = 117,322.42

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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.