Home / 156,206.69-215,564.91-84,586.49

Finding the Fourth Proportional to 156,206.69, 215,564.91 and 84,586.49

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Solution

The fourth proportional to 156,206.69, 215,564.91 and 84,586.49 is: 116,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,206.69 : 215,564.91 = 84,586.49 : x
  2. Step 2: Convert to fraction form
    156,206.69/215,564.91 = 84,586.49/x
  3. Step 3: Cross multiply
    156,206.69x = 215,564.91 × 84,586.49
  4. Step 4: Simplify right side
    156,206.69x = 18,233,878,026.24
  5. Step 5: Solve for x
    x = 18,233,878,026.24/156,206.69
  6. Step 6: Final answer
    x = 116,729.18

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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.