Home / 156,638.24-216,160.96-85,018.26

Finding the Fourth Proportional to 156,638.24, 216,160.96 and 85,018.26

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Solution

The fourth proportional to 156,638.24, 216,160.96 and 85,018.26 is: 117,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,638.24 : 216,160.96 = 85,018.26 : x
  2. Step 2: Convert to fraction form
    156,638.24/216,160.96 = 85,018.26/x
  3. Step 3: Cross multiply
    156,638.24x = 216,160.96 × 85,018.26
  4. Step 4: Simplify right side
    156,638.24x = 18,377,628,699.13
  5. Step 5: Solve for x
    x = 18,377,628,699.13/156,638.24
  6. Step 6: Final answer
    x = 117,325.30

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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.