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Finding the Fourth Proportional to 115,218, 172,895.04 and 48,653.82

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Solution

The fourth proportional to 115,218, 172,895.04 and 48,653.82 is: 73,009.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,218 : 172,895.04 = 48,653.82 : x
  2. Step 2: Convert to fraction form
    115,218/172,895.04 = 48,653.82/x
  3. Step 3: Cross multiply
    115,218x = 172,895.04 × 48,653.82
  4. Step 4: Simplify right side
    115,218x = 8,412,004,155.05
  5. Step 5: Solve for x
    x = 8,412,004,155.05/115,218
  6. Step 6: Final answer
    x = 73,009.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.