Home / 156,296.04-215,688.24-84,678

Finding the Fourth Proportional to 156,296.04, 215,688.24 and 84,678

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Solution

The fourth proportional to 156,296.04, 215,688.24 and 84,678 is: 116,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,296.04 : 215,688.24 = 84,678 : x
  2. Step 2: Convert to fraction form
    156,296.04/215,688.24 = 84,678/x
  3. Step 3: Cross multiply
    156,296.04x = 215,688.24 × 84,678
  4. Step 4: Simplify right side
    156,296.04x = 18,264,048,786.72
  5. Step 5: Solve for x
    x = 18,264,048,786.72/156,296.04
  6. Step 6: Final answer
    x = 116,855.48

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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.