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Finding the Fourth Proportional to 159,027.84, 219,463.68 and 87,410.40

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Solution

The fourth proportional to 159,027.84, 219,463.68 and 87,410.40 is: 120,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,027.84 : 219,463.68 = 87,410.40 : x
  2. Step 2: Convert to fraction form
    159,027.84/219,463.68 = 87,410.40/x
  3. Step 3: Cross multiply
    159,027.84x = 219,463.68 × 87,410.40
  4. Step 4: Simplify right side
    159,027.84x = 19,183,408,054.27
  5. Step 5: Solve for x
    x = 19,183,408,054.27/159,027.84
  6. Step 6: Final answer
    x = 120,629.24

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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.