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Finding the Fourth Proportional to 159,174.83, 219,656.67 and 87,554.84

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Solution

The fourth proportional to 159,174.83, 219,656.67 and 87,554.84 is: 120,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,174.83 : 219,656.67 = 87,554.84 : x
  2. Step 2: Convert to fraction form
    159,174.83/219,656.67 = 87,554.84/x
  3. Step 3: Cross multiply
    159,174.83x = 219,656.67 × 87,554.84
  4. Step 4: Simplify right side
    159,174.83x = 19,232,003,498.50
  5. Step 5: Solve for x
    x = 19,232,003,498.50/159,174.83
  6. Step 6: Final answer
    x = 120,823.15

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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.