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Finding the Fourth Proportional to 158,735.31, 219,060.01 and 87,119.22

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Solution

The fourth proportional to 158,735.31, 219,060.01 and 87,119.22 is: 120,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,735.31 : 219,060.01 = 87,119.22 : x
  2. Step 2: Convert to fraction form
    158,735.31/219,060.01 = 87,119.22/x
  3. Step 3: Cross multiply
    158,735.31x = 219,060.01 × 87,119.22
  4. Step 4: Simplify right side
    158,735.31x = 19,084,337,204.39
  5. Step 5: Solve for x
    x = 19,084,337,204.39/158,735.31
  6. Step 6: Final answer
    x = 120,227.42

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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.