Home / 156,039.22-215,333.56-84,419.27

Finding the Fourth Proportional to 156,039.22, 215,333.56 and 84,419.27

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Solution

The fourth proportional to 156,039.22, 215,333.56 and 84,419.27 is: 116,498.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,039.22 : 215,333.56 = 84,419.27 : x
  2. Step 2: Convert to fraction form
    156,039.22/215,333.56 = 84,419.27/x
  3. Step 3: Cross multiply
    156,039.22x = 215,333.56 × 84,419.27
  4. Step 4: Simplify right side
    156,039.22x = 18,178,301,941.70
  5. Step 5: Solve for x
    x = 18,178,301,941.70/156,039.22
  6. Step 6: Final answer
    x = 116,498.29

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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.