Home / 156,059.10-215,362.11-84,439.12

Finding the Fourth Proportional to 156,059.10, 215,362.11 and 84,439.12

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Solution

The fourth proportional to 156,059.10, 215,362.11 and 84,439.12 is: 116,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,059.10 : 215,362.11 = 84,439.12 : x
  2. Step 2: Convert to fraction form
    156,059.10/215,362.11 = 84,439.12/x
  3. Step 3: Cross multiply
    156,059.10x = 215,362.11 × 84,439.12
  4. Step 4: Simplify right side
    156,059.10x = 18,184,986,511.34
  5. Step 5: Solve for x
    x = 18,184,986,511.34/156,059.10
  6. Step 6: Final answer
    x = 116,526.28

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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.