Home / 156,026.88-215,316.80-84,406.96

Finding the Fourth Proportional to 156,026.88, 215,316.80 and 84,406.96

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Solution

The fourth proportional to 156,026.88, 215,316.80 and 84,406.96 is: 116,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,026.88 : 215,316.80 = 84,406.96 : x
  2. Step 2: Convert to fraction form
    156,026.88/215,316.80 = 84,406.96/x
  3. Step 3: Cross multiply
    156,026.88x = 215,316.80 × 84,406.96
  4. Step 4: Simplify right side
    156,026.88x = 18,174,236,524.93
  5. Step 5: Solve for x
    x = 18,174,236,524.93/156,026.88
  6. Step 6: Final answer
    x = 116,481.45

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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.