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Finding the Fourth Proportional to 151,999.58, 209,759.01 and 84,931.58

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Solution

The fourth proportional to 151,999.58, 209,759.01 and 84,931.58 is: 117,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,999.58 : 209,759.01 = 84,931.58 : x
  2. Step 2: Convert to fraction form
    151,999.58/209,759.01 = 84,931.58/x
  3. Step 3: Cross multiply
    151,999.58x = 209,759.01 × 84,931.58
  4. Step 4: Simplify right side
    151,999.58x = 17,815,164,138.54
  5. Step 5: Solve for x
    x = 17,815,164,138.54/151,999.58
  6. Step 6: Final answer
    x = 117,205.35

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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.