Home / 156,669.42-216,231.41-88,690.26

Finding the Fourth Proportional to 156,669.42, 216,231.41 and 88,690.26

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Solution

The fourth proportional to 156,669.42, 216,231.41 and 88,690.26 is: 122,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,669.42 : 216,231.41 = 88,690.26 : x
  2. Step 2: Convert to fraction form
    156,669.42/216,231.41 = 88,690.26/x
  3. Step 3: Cross multiply
    156,669.42x = 216,231.41 × 88,690.26
  4. Step 4: Simplify right side
    156,669.42x = 19,177,619,529.62
  5. Step 5: Solve for x
    x = 19,177,619,529.62/156,669.42
  6. Step 6: Final answer
    x = 122,408.19

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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.