Home / 156,286.72-215,533.93-102,551.32

Finding the Fourth Proportional to 156,286.72, 215,533.93 and 102,551.32

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Solution

The fourth proportional to 156,286.72, 215,533.93 and 102,551.32 is: 141,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,286.72 : 215,533.93 = 102,551.32 : x
  2. Step 2: Convert to fraction form
    156,286.72/215,533.93 = 102,551.32/x
  3. Step 3: Cross multiply
    156,286.72x = 215,533.93 × 102,551.32
  4. Step 4: Simplify right side
    156,286.72x = 22,103,289,026.29
  5. Step 5: Solve for x
    x = 22,103,289,026.29/156,286.72
  6. Step 6: Final answer
    x = 141,427.81

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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.