Home / 156,973.38-216,625.70-85,353.58

Finding the Fourth Proportional to 156,973.38, 216,625.70 and 85,353.58

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Solution

The fourth proportional to 156,973.38, 216,625.70 and 85,353.58 is: 117,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,973.38 : 216,625.70 = 85,353.58 : x
  2. Step 2: Convert to fraction form
    156,973.38/216,625.70 = 85,353.58/x
  3. Step 3: Cross multiply
    156,973.38x = 216,625.70 × 85,353.58
  4. Step 4: Simplify right side
    156,973.38x = 18,489,779,015.01
  5. Step 5: Solve for x
    x = 18,489,779,015.01/156,973.38
  6. Step 6: Final answer
    x = 117,789.26

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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.