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Finding the Fourth Proportional to 152,080.54, 209,872.50 and 84,102.08

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Solution

The fourth proportional to 152,080.54, 209,872.50 and 84,102.08 is: 116,061.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,080.54 : 209,872.50 = 84,102.08 : x
  2. Step 2: Convert to fraction form
    152,080.54/209,872.50 = 84,102.08/x
  3. Step 3: Cross multiply
    152,080.54x = 209,872.50 × 84,102.08
  4. Step 4: Simplify right side
    152,080.54x = 17,650,714,781.84
  5. Step 5: Solve for x
    x = 17,650,714,781.84/152,080.54
  6. Step 6: Final answer
    x = 116,061.63

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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.