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Finding the Fourth Proportional to 159,035.38, 219,464.37 and 87,415.54

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Solution

The fourth proportional to 159,035.38, 219,464.37 and 87,415.54 is: 120,631.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,035.38 : 219,464.37 = 87,415.54 : x
  2. Step 2: Convert to fraction form
    159,035.38/219,464.37 = 87,415.54/x
  3. Step 3: Cross multiply
    159,035.38x = 219,464.37 × 87,415.54
  4. Step 4: Simplify right side
    159,035.38x = 19,184,596,414.31
  5. Step 5: Solve for x
    x = 19,184,596,414.31/159,035.38
  6. Step 6: Final answer
    x = 120,631.00

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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.