Home / 119,911.20-165,478.80-66,195.24

Finding the Fourth Proportional to 119,911.20, 165,478.80 and 66,195.24

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Solution

The fourth proportional to 119,911.20, 165,478.80 and 66,195.24 is: 91,350.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,911.20 : 165,478.80 = 66,195.24 : x
  2. Step 2: Convert to fraction form
    119,911.20/165,478.80 = 66,195.24/x
  3. Step 3: Cross multiply
    119,911.20x = 165,478.80 × 66,195.24
  4. Step 4: Simplify right side
    119,911.20x = 10,953,908,880.91
  5. Step 5: Solve for x
    x = 10,953,908,880.91/119,911.20
  6. Step 6: Final answer
    x = 91,350.17

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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.