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Finding the Fourth Proportional to 156,277.08, 215,661.48 and 84,658.48

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Solution

The fourth proportional to 156,277.08, 215,661.48 and 84,658.48 is: 116,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,277.08 : 215,661.48 = 84,658.48 : x
  2. Step 2: Convert to fraction form
    156,277.08/215,661.48 = 84,658.48/x
  3. Step 3: Cross multiply
    156,277.08x = 215,661.48 × 84,658.48
  4. Step 4: Simplify right side
    156,277.08x = 18,257,573,091.35
  5. Step 5: Solve for x
    x = 18,257,573,091.35/156,277.08
  6. Step 6: Final answer
    x = 116,828.22

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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.