Home / 156,285.36-215,672.76-84,663.72

Finding the Fourth Proportional to 156,285.36, 215,672.76 and 84,663.72

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Solution

The fourth proportional to 156,285.36, 215,672.76 and 84,663.72 is: 116,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,285.36 : 215,672.76 = 84,663.72 : x
  2. Step 2: Convert to fraction form
    156,285.36/215,672.76 = 84,663.72/x
  3. Step 3: Cross multiply
    156,285.36x = 215,672.76 × 84,663.72
  4. Step 4: Simplify right side
    156,285.36x = 18,259,658,164.27
  5. Step 5: Solve for x
    x = 18,259,658,164.27/156,285.36
  6. Step 6: Final answer
    x = 116,835.37

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1.5x scale

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.