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Finding the Fourth Proportional to 158,725.56, 219,047.56 and 87,108.14

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Solution

The fourth proportional to 158,725.56, 219,047.56 and 87,108.14 is: 120,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,725.56 : 219,047.56 = 87,108.14 : x
  2. Step 2: Convert to fraction form
    158,725.56/219,047.56 = 87,108.14/x
  3. Step 3: Cross multiply
    158,725.56x = 219,047.56 × 87,108.14
  4. Step 4: Simplify right side
    158,725.56x = 19,080,825,523.14
  5. Step 5: Solve for x
    x = 19,080,825,523.14/158,725.56
  6. Step 6: Final answer
    x = 120,212.68

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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.