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Finding the Fourth Proportional to 151,660.88, 209,292.44 and 84,597.20

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Solution

The fourth proportional to 151,660.88, 209,292.44 and 84,597.20 is: 116,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,660.88 : 209,292.44 = 84,597.20 : x
  2. Step 2: Convert to fraction form
    151,660.88/209,292.44 = 84,597.20/x
  3. Step 3: Cross multiply
    151,660.88x = 209,292.44 × 84,597.20
  4. Step 4: Simplify right side
    151,660.88x = 17,705,554,405.17
  5. Step 5: Solve for x
    x = 17,705,554,405.17/151,660.88
  6. Step 6: Final answer
    x = 116,744.37

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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.