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Finding the Fourth Proportional to 118,020.63, 162,866.42 and 64,306.09

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Solution

The fourth proportional to 118,020.63, 162,866.42 and 64,306.09 is: 88,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,020.63 : 162,866.42 = 64,306.09 : x
  2. Step 2: Convert to fraction form
    118,020.63/162,866.42 = 64,306.09/x
  3. Step 3: Cross multiply
    118,020.63x = 162,866.42 × 64,306.09
  4. Step 4: Simplify right side
    118,020.63x = 10,473,302,340.97
  5. Step 5: Solve for x
    x = 10,473,302,340.97/118,020.63
  6. Step 6: Final answer
    x = 88,741.28

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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.