Home / 156,165.16-215,509.62-84,546.70

Finding the Fourth Proportional to 156,165.16, 215,509.62 and 84,546.70

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Solution

The fourth proportional to 156,165.16, 215,509.62 and 84,546.70 is: 116,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,165.16 : 215,509.62 = 84,546.70 : x
  2. Step 2: Convert to fraction form
    156,165.16/215,509.62 = 84,546.70/x
  3. Step 3: Cross multiply
    156,165.16x = 215,509.62 × 84,546.70
  4. Step 4: Simplify right side
    156,165.16x = 18,220,627,189.25
  5. Step 5: Solve for x
    x = 18,220,627,189.25/156,165.16
  6. Step 6: Final answer
    x = 116,675.37

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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.