Home / 156,641.24-216,165.10-85,021.26

Finding the Fourth Proportional to 156,641.24, 216,165.10 and 85,021.26

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Solution

The fourth proportional to 156,641.24, 216,165.10 and 85,021.26 is: 117,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641.24 : 216,165.10 = 85,021.26 : x
  2. Step 2: Convert to fraction form
    156,641.24/216,165.10 = 85,021.26/x
  3. Step 3: Cross multiply
    156,641.24x = 216,165.10 × 85,021.26
  4. Step 4: Simplify right side
    156,641.24x = 18,378,629,170.03
  5. Step 5: Solve for x
    x = 18,378,629,170.03/156,641.24
  6. Step 6: Final answer
    x = 117,329.44

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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.