Home / 156,107.06-215,428.32-84,487.10

Finding the Fourth Proportional to 156,107.06, 215,428.32 and 84,487.10

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Solution

The fourth proportional to 156,107.06, 215,428.32 and 84,487.10 is: 116,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,107.06 : 215,428.32 = 84,487.10 : x
  2. Step 2: Convert to fraction form
    156,107.06/215,428.32 = 84,487.10/x
  3. Step 3: Cross multiply
    156,107.06x = 215,428.32 × 84,487.10
  4. Step 4: Simplify right side
    156,107.06x = 18,200,914,014.67
  5. Step 5: Solve for x
    x = 18,200,914,014.67/156,107.06
  6. Step 6: Final answer
    x = 116,592.51

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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.