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Finding the Fourth Proportional to 146,908, 202,733.04 and 79,840

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Solution

The fourth proportional to 146,908, 202,733.04 and 79,840 is: 110,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,908 : 202,733.04 = 79,840 : x
  2. Step 2: Convert to fraction form
    146,908/202,733.04 = 79,840/x
  3. Step 3: Cross multiply
    146,908x = 202,733.04 × 79,840
  4. Step 4: Simplify right side
    146,908x = 16,186,205,913.60
  5. Step 5: Solve for x
    x = 16,186,205,913.60/146,908
  6. Step 6: Final answer
    x = 110,179.20

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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.