Home / 119,905.05-165,470.12-66,188.91

Finding the Fourth Proportional to 119,905.05, 165,470.12 and 66,188.91

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Solution

The fourth proportional to 119,905.05, 165,470.12 and 66,188.91 is: 91,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,905.05 : 165,470.12 = 66,188.91 : x
  2. Step 2: Convert to fraction form
    119,905.05/165,470.12 = 66,188.91/x
  3. Step 3: Cross multiply
    119,905.05x = 165,470.12 × 66,188.91
  4. Step 4: Simplify right side
    119,905.05x = 10,952,286,880.37
  5. Step 5: Solve for x
    x = 10,952,286,880.37/119,905.05
  6. Step 6: Final answer
    x = 91,341.33

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1.5x scale

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.