Home / 156,801.07-216,385.73-85,181.14

Finding the Fourth Proportional to 156,801.07, 216,385.73 and 85,181.14

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Solution

The fourth proportional to 156,801.07, 216,385.73 and 85,181.14 is: 117,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,801.07 : 216,385.73 = 85,181.14 : x
  2. Step 2: Convert to fraction form
    156,801.07/216,385.73 = 85,181.14/x
  3. Step 3: Cross multiply
    156,801.07x = 216,385.73 × 85,181.14
  4. Step 4: Simplify right side
    156,801.07x = 18,431,983,933.72
  5. Step 5: Solve for x
    x = 18,431,983,933.72/156,801.07
  6. Step 6: Final answer
    x = 117,550.12

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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.