Home / 156,104.72-215,423.24-84,483.28

Finding the Fourth Proportional to 156,104.72, 215,423.24 and 84,483.28

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Solution

The fourth proportional to 156,104.72, 215,423.24 and 84,483.28 is: 116,586.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,104.72 : 215,423.24 = 84,483.28 : x
  2. Step 2: Convert to fraction form
    156,104.72/215,423.24 = 84,483.28/x
  3. Step 3: Cross multiply
    156,104.72x = 215,423.24 × 84,483.28
  4. Step 4: Simplify right side
    156,104.72x = 18,199,661,903.43
  5. Step 5: Solve for x
    x = 18,199,661,903.43/156,104.72
  6. Step 6: Final answer
    x = 116,586.24

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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.