Home / 115,276.50-159,081.57-64,977.30

Finding the Fourth Proportional to 115,276.50, 159,081.57 and 64,977.30

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Solution

The fourth proportional to 115,276.50, 159,081.57 and 64,977.30 is: 89,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,276.50 : 159,081.57 = 64,977.30 : x
  2. Step 2: Convert to fraction form
    115,276.50/159,081.57 = 64,977.30/x
  3. Step 3: Cross multiply
    115,276.50x = 159,081.57 × 64,977.30
  4. Step 4: Simplify right side
    115,276.50x = 10,336,690,898.36
  5. Step 5: Solve for x
    x = 10,336,690,898.36/115,276.50
  6. Step 6: Final answer
    x = 89,668.67

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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.