Home / 156,113.40-215,436.84-84,494.04

Finding the Fourth Proportional to 156,113.40, 215,436.84 and 84,494.04

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Solution

The fourth proportional to 156,113.40, 215,436.84 and 84,494.04 is: 116,601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,113.40 : 215,436.84 = 84,494.04 : x
  2. Step 2: Convert to fraction form
    156,113.40/215,436.84 = 84,494.04/x
  3. Step 3: Cross multiply
    156,113.40x = 215,436.84 × 84,494.04
  4. Step 4: Simplify right side
    156,113.40x = 18,203,128,976.43
  5. Step 5: Solve for x
    x = 18,203,128,976.43/156,113.40
  6. Step 6: Final answer
    x = 116,601.96

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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.