Home / 156,162.64-215,504.32-84,543.28

Finding the Fourth Proportional to 156,162.64, 215,504.32 and 84,543.28

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Solution

The fourth proportional to 156,162.64, 215,504.32 and 84,543.28 is: 116,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,162.64 : 215,504.32 = 84,543.28 : x
  2. Step 2: Convert to fraction form
    156,162.64/215,504.32 = 84,543.28/x
  3. Step 3: Cross multiply
    156,162.64x = 215,504.32 × 84,543.28
  4. Step 4: Simplify right side
    156,162.64x = 18,219,442,066.97
  5. Step 5: Solve for x
    x = 18,219,442,066.97/156,162.64
  6. Step 6: Final answer
    x = 116,669.66

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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.