Home / 119,716.60-165,210.06-66,003.70

Finding the Fourth Proportional to 119,716.60, 165,210.06 and 66,003.70

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Solution

The fourth proportional to 119,716.60, 165,210.06 and 66,003.70 is: 91,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,716.60 : 165,210.06 = 66,003.70 : x
  2. Step 2: Convert to fraction form
    119,716.60/165,210.06 = 66,003.70/x
  3. Step 3: Cross multiply
    119,716.60x = 165,210.06 × 66,003.70
  4. Step 4: Simplify right side
    119,716.60x = 10,904,475,237.22
  5. Step 5: Solve for x
    x = 10,904,475,237.22/119,716.60
  6. Step 6: Final answer
    x = 91,085.74

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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.