Home / 156,223.11-215,586.75-84,601.47

Finding the Fourth Proportional to 156,223.11, 215,586.75 and 84,601.47

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Solution

The fourth proportional to 156,223.11, 215,586.75 and 84,601.47 is: 116,749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,223.11 : 215,586.75 = 84,601.47 : x
  2. Step 2: Convert to fraction form
    156,223.11/215,586.75 = 84,601.47/x
  3. Step 3: Cross multiply
    156,223.11x = 215,586.75 × 84,601.47
  4. Step 4: Simplify right side
    156,223.11x = 18,238,955,962.52
  5. Step 5: Solve for x
    x = 18,238,955,962.52/156,223.11
  6. Step 6: Final answer
    x = 116,749.41

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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.