Home / 156,636.03-216,157.91-85,016.07

Finding the Fourth Proportional to 156,636.03, 216,157.91 and 85,016.07

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Solution

The fourth proportional to 156,636.03, 216,157.91 and 85,016.07 is: 117,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.03 : 216,157.91 = 85,016.07 : x
  2. Step 2: Convert to fraction form
    156,636.03/216,157.91 = 85,016.07/x
  3. Step 3: Cross multiply
    156,636.03x = 216,157.91 × 85,016.07
  4. Step 4: Simplify right side
    156,636.03x = 18,376,896,007.61
  5. Step 5: Solve for x
    x = 18,376,896,007.61/156,636.03
  6. Step 6: Final answer
    x = 117,322.28

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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.