Home / 156,641.33-216,165.26-85,021.37

Finding the Fourth Proportional to 156,641.33, 216,165.26 and 85,021.37

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Solution

The fourth proportional to 156,641.33, 216,165.26 and 85,021.37 is: 117,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641.33 : 216,165.26 = 85,021.37 : x
  2. Step 2: Convert to fraction form
    156,641.33/216,165.26 = 85,021.37/x
  3. Step 3: Cross multiply
    156,641.33x = 216,165.26 × 85,021.37
  4. Step 4: Simplify right side
    156,641.33x = 18,378,666,015.71
  5. Step 5: Solve for x
    x = 18,378,666,015.71/156,641.33
  6. Step 6: Final answer
    x = 117,329.61

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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.