Home / 156,261.36-215,640.58-84,641.22

Finding the Fourth Proportional to 156,261.36, 215,640.58 and 84,641.22

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Solution

The fourth proportional to 156,261.36, 215,640.58 and 84,641.22 is: 116,804.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,261.36 : 215,640.58 = 84,641.22 : x
  2. Step 2: Convert to fraction form
    156,261.36/215,640.58 = 84,641.22/x
  3. Step 3: Cross multiply
    156,261.36x = 215,640.58 × 84,641.22
  4. Step 4: Simplify right side
    156,261.36x = 18,252,081,772.71
  5. Step 5: Solve for x
    x = 18,252,081,772.71/156,261.36
  6. Step 6: Final answer
    x = 116,804.83

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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.