Home / 119,972.74-165,561.06-66,256.70

Finding the Fourth Proportional to 119,972.74, 165,561.06 and 66,256.70

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Solution

The fourth proportional to 119,972.74, 165,561.06 and 66,256.70 is: 91,433.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,972.74 : 165,561.06 = 66,256.70 : x
  2. Step 2: Convert to fraction form
    119,972.74/165,561.06 = 66,256.70/x
  3. Step 3: Cross multiply
    119,972.74x = 165,561.06 × 66,256.70
  4. Step 4: Simplify right side
    119,972.74x = 10,969,529,484.10
  5. Step 5: Solve for x
    x = 10,969,529,484.10/119,972.74
  6. Step 6: Final answer
    x = 91,433.52

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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.