Home / 156,223.56-215,588.70-84,603.69

Finding the Fourth Proportional to 156,223.56, 215,588.70 and 84,603.69

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Solution

The fourth proportional to 156,223.56, 215,588.70 and 84,603.69 is: 116,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,223.56 : 215,588.70 = 84,603.69 : x
  2. Step 2: Convert to fraction form
    156,223.56/215,588.70 = 84,603.69/x
  3. Step 3: Cross multiply
    156,223.56x = 215,588.70 × 84,603.69
  4. Step 4: Simplify right side
    156,223.56x = 18,239,599,542.30
  5. Step 5: Solve for x
    x = 18,239,599,542.30/156,223.56
  6. Step 6: Final answer
    x = 116,753.19

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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.