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Finding the Fourth Proportional to 158,697.44, 219,002.73 and 87,078.01

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Solution

The fourth proportional to 158,697.44, 219,002.73 and 87,078.01 is: 120,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,697.44 : 219,002.73 = 87,078.01 : x
  2. Step 2: Convert to fraction form
    158,697.44/219,002.73 = 87,078.01/x
  3. Step 3: Cross multiply
    158,697.44x = 219,002.73 × 87,078.01
  4. Step 4: Simplify right side
    158,697.44x = 19,070,320,817.95
  5. Step 5: Solve for x
    x = 19,070,320,817.95/158,697.44
  6. Step 6: Final answer
    x = 120,167.79

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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.