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Finding the Fourth Proportional to 158,997.60, 219,406.08 and 87,376.08

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Solution

The fourth proportional to 158,997.60, 219,406.08 and 87,376.08 is: 120,573.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,997.60 : 219,406.08 = 87,376.08 : x
  2. Step 2: Convert to fraction form
    158,997.60/219,406.08 = 87,376.08/x
  3. Step 3: Cross multiply
    158,997.60x = 219,406.08 × 87,376.08
  4. Step 4: Simplify right side
    158,997.60x = 19,170,843,198.57
  5. Step 5: Solve for x
    x = 19,170,843,198.57/158,997.60
  6. Step 6: Final answer
    x = 120,573.16

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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.