Home / 156,814.73-216,403.16-85,195.34

Finding the Fourth Proportional to 156,814.73, 216,403.16 and 85,195.34

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Solution

The fourth proportional to 156,814.73, 216,403.16 and 85,195.34 is: 117,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,814.73 : 216,403.16 = 85,195.34 : x
  2. Step 2: Convert to fraction form
    156,814.73/216,403.16 = 85,195.34/x
  3. Step 3: Cross multiply
    156,814.73x = 216,403.16 × 85,195.34
  4. Step 4: Simplify right side
    156,814.73x = 18,436,539,924.25
  5. Step 5: Solve for x
    x = 18,436,539,924.25/156,814.73
  6. Step 6: Final answer
    x = 117,568.93

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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.