Home / 119,929.68-165,501.90-66,213.56

Finding the Fourth Proportional to 119,929.68, 165,501.90 and 66,213.56

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Solution

The fourth proportional to 119,929.68, 165,501.90 and 66,213.56 is: 91,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,929.68 : 165,501.90 = 66,213.56 : x
  2. Step 2: Convert to fraction form
    119,929.68/165,501.90 = 66,213.56/x
  3. Step 3: Cross multiply
    119,929.68x = 165,501.90 × 66,213.56
  4. Step 4: Simplify right side
    119,929.68x = 10,958,470,399.52
  5. Step 5: Solve for x
    x = 10,958,470,399.52/119,929.68
  6. Step 6: Final answer
    x = 91,374.13

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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.