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Finding the Fourth Proportional to 118,107.54, 162,888.12 and 99,800.33

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Solution

The fourth proportional to 118,107.54, 162,888.12 and 99,800.33 is: 137,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,107.54 : 162,888.12 = 99,800.33 : x
  2. Step 2: Convert to fraction form
    118,107.54/162,888.12 = 99,800.33/x
  3. Step 3: Cross multiply
    118,107.54x = 162,888.12 × 99,800.33
  4. Step 4: Simplify right side
    118,107.54x = 16,256,287,314.64
  5. Step 5: Solve for x
    x = 16,256,287,314.64/118,107.54
  6. Step 6: Final answer
    x = 137,639.71

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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.