Home / 156,656.80-216,185.70-85,036.24

Finding the Fourth Proportional to 156,656.80, 216,185.70 and 85,036.24

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Solution

The fourth proportional to 156,656.80, 216,185.70 and 85,036.24 is: 117,349.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,656.80 : 216,185.70 = 85,036.24 : x
  2. Step 2: Convert to fraction form
    156,656.80/216,185.70 = 85,036.24/x
  3. Step 3: Cross multiply
    156,656.80x = 216,185.70 × 85,036.24
  4. Step 4: Simplify right side
    156,656.80x = 18,383,619,069.77
  5. Step 5: Solve for x
    x = 18,383,619,069.77/156,656.80
  6. Step 6: Final answer
    x = 117,349.64

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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.