Home / 156,098.40-215,416.35-84,478.41

Finding the Fourth Proportional to 156,098.40, 215,416.35 and 84,478.41

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Solution

The fourth proportional to 156,098.40, 215,416.35 and 84,478.41 is: 116,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,098.40 : 215,416.35 = 84,478.41 : x
  2. Step 2: Convert to fraction form
    156,098.40/215,416.35 = 84,478.41/x
  3. Step 3: Cross multiply
    156,098.40x = 215,416.35 × 84,478.41
  4. Step 4: Simplify right side
    156,098.40x = 18,198,030,736.00
  5. Step 5: Solve for x
    x = 18,198,030,736.00/156,098.40
  6. Step 6: Final answer
    x = 116,580.51

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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.