Home / 119,853.01-165,397.64-66,139.58

Finding the Fourth Proportional to 119,853.01, 165,397.64 and 66,139.58

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Solution

The fourth proportional to 119,853.01, 165,397.64 and 66,139.58 is: 91,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,853.01 : 165,397.64 = 66,139.58 : x
  2. Step 2: Convert to fraction form
    119,853.01/165,397.64 = 66,139.58/x
  3. Step 3: Cross multiply
    119,853.01x = 165,397.64 × 66,139.58
  4. Step 4: Simplify right side
    119,853.01x = 10,939,330,442.59
  5. Step 5: Solve for x
    x = 10,939,330,442.59/119,853.01
  6. Step 6: Final answer
    x = 91,272.89

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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.