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Finding the Fourth Proportional to 172,482.83, 237,998.08 and 99,859.85

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Solution

The fourth proportional to 172,482.83, 237,998.08 and 99,859.85 is: 137,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,482.83 : 237,998.08 = 99,859.85 : x
  2. Step 2: Convert to fraction form
    172,482.83/237,998.08 = 99,859.85/x
  3. Step 3: Cross multiply
    172,482.83x = 237,998.08 × 99,859.85
  4. Step 4: Simplify right side
    172,482.83x = 23,766,452,569.09
  5. Step 5: Solve for x
    x = 23,766,452,569.09/172,482.83
  6. Step 6: Final answer
    x = 137,790.25

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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.