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Finding the Fourth Proportional to 151,892.80, 209,612.04 and 84,824.80

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Solution

The fourth proportional to 151,892.80, 209,612.04 and 84,824.80 is: 117,058.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,892.80 : 209,612.04 = 84,824.80 : x
  2. Step 2: Convert to fraction form
    151,892.80/209,612.04 = 84,824.80/x
  3. Step 3: Cross multiply
    151,892.80x = 209,612.04 × 84,824.80
  4. Step 4: Simplify right side
    151,892.80x = 17,780,298,528.47
  5. Step 5: Solve for x
    x = 17,780,298,528.47/151,892.80
  6. Step 6: Final answer
    x = 117,058.21

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1.5x scale

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.