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Finding the Fourth Proportional to 118,246.80, 177,536.25 and 112,890.69

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Solution

The fourth proportional to 118,246.80, 177,536.25 and 112,890.69 is: 169,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,246.80 : 177,536.25 = 112,890.69 : x
  2. Step 2: Convert to fraction form
    118,246.80/177,536.25 = 112,890.69/x
  3. Step 3: Cross multiply
    118,246.80x = 177,536.25 × 112,890.69
  4. Step 4: Simplify right side
    118,246.80x = 20,042,189,762.51
  5. Step 5: Solve for x
    x = 20,042,189,762.51/118,246.80
  6. Step 6: Final answer
    x = 169,494.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.