Home / 147,103-219,981.66-109,688.56

Finding the Fourth Proportional to 147,103, 219,981.66 and 109,688.56

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Solution

The fourth proportional to 147,103, 219,981.66 and 109,688.56 is: 164,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,103 : 219,981.66 = 109,688.56 : x
  2. Step 2: Convert to fraction form
    147,103/219,981.66 = 109,688.56/x
  3. Step 3: Cross multiply
    147,103x = 219,981.66 × 109,688.56
  4. Step 4: Simplify right side
    147,103x = 24,129,471,511.81
  5. Step 5: Solve for x
    x = 24,129,471,511.81/147,103
  6. Step 6: Final answer
    x = 164,031.13

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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.