Home / 131,317.87-196,980.76-51,352.65

Finding the Fourth Proportional to 131,317.87, 196,980.76 and 51,352.65

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Solution

The fourth proportional to 131,317.87, 196,980.76 and 51,352.65 is: 77,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,317.87 : 196,980.76 = 51,352.65 : x
  2. Step 2: Convert to fraction form
    131,317.87/196,980.76 = 51,352.65/x
  3. Step 3: Cross multiply
    131,317.87x = 196,980.76 × 51,352.65
  4. Step 4: Simplify right side
    131,317.87x = 10,115,484,025.01
  5. Step 5: Solve for x
    x = 10,115,484,025.01/131,317.87
  6. Step 6: Final answer
    x = 77,030.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.