Home / 133,278.08-199,915.68-39,784.64

Finding the Fourth Proportional to 133,278.08, 199,915.68 and 39,784.64

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Solution

The fourth proportional to 133,278.08, 199,915.68 and 39,784.64 is: 59,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,278.08 : 199,915.68 = 39,784.64 : x
  2. Step 2: Convert to fraction form
    133,278.08/199,915.68 = 39,784.64/x
  3. Step 3: Cross multiply
    133,278.08x = 199,915.68 × 39,784.64
  4. Step 4: Simplify right side
    133,278.08x = 7,953,573,359.16
  5. Step 5: Solve for x
    x = 7,953,573,359.16/133,278.08
  6. Step 6: Final answer
    x = 59,676.53

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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.