Home / 159,081.11-219,533.40-87,461.63

Finding the Fourth Proportional to 159,081.11, 219,533.40 and 87,461.63

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Solution

The fourth proportional to 159,081.11, 219,533.40 and 87,461.63 is: 120,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081.11 : 219,533.40 = 87,461.63 : x
  2. Step 2: Convert to fraction form
    159,081.11/219,533.40 = 87,461.63/x
  3. Step 3: Cross multiply
    159,081.11x = 219,533.40 × 87,461.63
  4. Step 4: Simplify right side
    159,081.11x = 19,200,747,905.78
  5. Step 5: Solve for x
    x = 19,200,747,905.78/159,081.11
  6. Step 6: Final answer
    x = 120,697.85

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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.