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Finding the Fourth Proportional to 120,502.65, 179,676.65 and 117,192.18

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Solution

The fourth proportional to 120,502.65, 179,676.65 and 117,192.18 is: 174,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,502.65 : 179,676.65 = 117,192.18 : x
  2. Step 2: Convert to fraction form
    120,502.65/179,676.65 = 117,192.18/x
  3. Step 3: Cross multiply
    120,502.65x = 179,676.65 × 117,192.18
  4. Step 4: Simplify right side
    120,502.65x = 21,056,697,722.64
  5. Step 5: Solve for x
    x = 21,056,697,722.64/120,502.65
  6. Step 6: Final answer
    x = 174,740.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.