Home / 156,174.48-215,521.20-84,554.64

Finding the Fourth Proportional to 156,174.48, 215,521.20 and 84,554.64

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Solution

The fourth proportional to 156,174.48, 215,521.20 and 84,554.64 is: 116,685.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,174.48 : 215,521.20 = 84,554.64 : x
  2. Step 2: Convert to fraction form
    156,174.48/215,521.20 = 84,554.64/x
  3. Step 3: Cross multiply
    156,174.48x = 215,521.20 × 84,554.64
  4. Step 4: Simplify right side
    156,174.48x = 18,223,317,478.37
  5. Step 5: Solve for x
    x = 18,223,317,478.37/156,174.48
  6. Step 6: Final answer
    x = 116,685.63

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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.