Home / 119,857.63-165,406.89-66,146.04

Finding the Fourth Proportional to 119,857.63, 165,406.89 and 66,146.04

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Solution

The fourth proportional to 119,857.63, 165,406.89 and 66,146.04 is: 91,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,857.63 : 165,406.89 = 66,146.04 : x
  2. Step 2: Convert to fraction form
    119,857.63/165,406.89 = 66,146.04/x
  3. Step 3: Cross multiply
    119,857.63x = 165,406.89 × 66,146.04
  4. Step 4: Simplify right side
    119,857.63x = 10,941,010,762.22
  5. Step 5: Solve for x
    x = 10,941,010,762.22/119,857.63
  6. Step 6: Final answer
    x = 91,283.39

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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.