Home / 119,931.26-165,511.62-66,216.11

Finding the Fourth Proportional to 119,931.26, 165,511.62 and 66,216.11

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Solution

The fourth proportional to 119,931.26, 165,511.62 and 66,216.11 is: 91,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,931.26 : 165,511.62 = 66,216.11 : x
  2. Step 2: Convert to fraction form
    119,931.26/165,511.62 = 66,216.11/x
  3. Step 3: Cross multiply
    119,931.26x = 165,511.62 × 66,216.11
  4. Step 4: Simplify right side
    119,931.26x = 10,959,534,808.64
  5. Step 5: Solve for x
    x = 10,959,534,808.64/119,931.26
  6. Step 6: Final answer
    x = 91,381.81

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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.