Home / 156,176.16-215,523.60-84,556.96

Finding the Fourth Proportional to 156,176.16, 215,523.60 and 84,556.96

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Solution

The fourth proportional to 156,176.16, 215,523.60 and 84,556.96 is: 116,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,176.16 : 215,523.60 = 84,556.96 : x
  2. Step 2: Convert to fraction form
    156,176.16/215,523.60 = 84,556.96/x
  3. Step 3: Cross multiply
    156,176.16x = 215,523.60 × 84,556.96
  4. Step 4: Simplify right side
    156,176.16x = 18,224,020,424.26
  5. Step 5: Solve for x
    x = 18,224,020,424.26/156,176.16
  6. Step 6: Final answer
    x = 116,688.88

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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.