Home / 106,109.76-159,053.31-42,974.67

Finding the Fourth Proportional to 106,109.76, 159,053.31 and 42,974.67

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Solution

The fourth proportional to 106,109.76, 159,053.31 and 42,974.67 is: 64,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,109.76 : 159,053.31 = 42,974.67 : x
  2. Step 2: Convert to fraction form
    106,109.76/159,053.31 = 42,974.67/x
  3. Step 3: Cross multiply
    106,109.76x = 159,053.31 × 42,974.67
  4. Step 4: Simplify right side
    106,109.76x = 6,835,263,509.66
  5. Step 5: Solve for x
    x = 6,835,263,509.66/106,109.76
  6. Step 6: Final answer
    x = 64,416.92

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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.