Home / 156,113.63-215,436.79-84,493.65

Finding the Fourth Proportional to 156,113.63, 215,436.79 and 84,493.65

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Solution

The fourth proportional to 156,113.63, 215,436.79 and 84,493.65 is: 116,601.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,113.63 : 215,436.79 = 84,493.65 : x
  2. Step 2: Convert to fraction form
    156,113.63/215,436.79 = 84,493.65/x
  3. Step 3: Cross multiply
    156,113.63x = 215,436.79 × 84,493.65
  4. Step 4: Simplify right side
    156,113.63x = 18,203,040,731.38
  5. Step 5: Solve for x
    x = 18,203,040,731.38/156,113.63
  6. Step 6: Final answer
    x = 116,601.23

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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.