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Finding the Fourth Proportional to 133,886.66, 200,830.68 and 45,140.94

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Solution

The fourth proportional to 133,886.66, 200,830.68 and 45,140.94 is: 67,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,886.66 : 200,830.68 = 45,140.94 : x
  2. Step 2: Convert to fraction form
    133,886.66/200,830.68 = 45,140.94/x
  3. Step 3: Cross multiply
    133,886.66x = 200,830.68 × 45,140.94
  4. Step 4: Simplify right side
    133,886.66x = 9,065,685,676.04
  5. Step 5: Solve for x
    x = 9,065,685,676.04/133,886.66
  6. Step 6: Final answer
    x = 67,711.64

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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.