Home / 156,636.08-216,158.03-85,016.13

Finding the Fourth Proportional to 156,636.08, 216,158.03 and 85,016.13

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Solution

The fourth proportional to 156,636.08, 216,158.03 and 85,016.13 is: 117,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.08 : 216,158.03 = 85,016.13 : x
  2. Step 2: Convert to fraction form
    156,636.08/216,158.03 = 85,016.13/x
  3. Step 3: Cross multiply
    156,636.08x = 216,158.03 × 85,016.13
  4. Step 4: Simplify right side
    156,636.08x = 18,376,918,262.16
  5. Step 5: Solve for x
    x = 18,376,918,262.16/156,636.08
  6. Step 6: Final answer
    x = 117,322.39

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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.