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Finding the Fourth Proportional to 159,176.98, 219,660.90 and 86,581.34

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Solution

The fourth proportional to 159,176.98, 219,660.90 and 86,581.34 is: 119,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,176.98 : 219,660.90 = 86,581.34 : x
  2. Step 2: Convert to fraction form
    159,176.98/219,660.90 = 86,581.34/x
  3. Step 3: Cross multiply
    159,176.98x = 219,660.90 × 86,581.34
  4. Step 4: Simplify right side
    159,176.98x = 19,018,534,468.35
  5. Step 5: Solve for x
    x = 19,018,534,468.35/159,176.98
  6. Step 6: Final answer
    x = 119,480.43

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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.