Home / 156,248.66-215,623.49-84,628.69

Finding the Fourth Proportional to 156,248.66, 215,623.49 and 84,628.69

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Solution

The fourth proportional to 156,248.66, 215,623.49 and 84,628.69 is: 116,787.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,248.66 : 215,623.49 = 84,628.69 : x
  2. Step 2: Convert to fraction form
    156,248.66/215,623.49 = 84,628.69/x
  3. Step 3: Cross multiply
    156,248.66x = 215,623.49 × 84,628.69
  4. Step 4: Simplify right side
    156,248.66x = 18,247,932,529.73
  5. Step 5: Solve for x
    x = 18,247,932,529.73/156,248.66
  6. Step 6: Final answer
    x = 116,787.77

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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.