Home / 156,054.70-215,297.22-102,369.52

Finding the Fourth Proportional to 156,054.70, 215,297.22 and 102,369.52

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Solution

The fourth proportional to 156,054.70, 215,297.22 and 102,369.52 is: 141,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,054.70 : 215,297.22 = 102,369.52 : x
  2. Step 2: Convert to fraction form
    156,054.70/215,297.22 = 102,369.52/x
  3. Step 3: Cross multiply
    156,054.70x = 215,297.22 × 102,369.52
  4. Step 4: Simplify right side
    156,054.70x = 22,039,873,068.73
  5. Step 5: Solve for x
    x = 22,039,873,068.73/156,054.70
  6. Step 6: Final answer
    x = 141,231.72

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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.