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Finding the Fourth Proportional to 134,789, 202,148.88 and 39,996.76

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Solution

The fourth proportional to 134,789, 202,148.88 and 39,996.76 is: 59,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,789 : 202,148.88 = 39,996.76 : x
  2. Step 2: Convert to fraction form
    134,789/202,148.88 = 39,996.76/x
  3. Step 3: Cross multiply
    134,789x = 202,148.88 × 39,996.76
  4. Step 4: Simplify right side
    134,789x = 8,085,300,237.63
  5. Step 5: Solve for x
    x = 8,085,300,237.63/134,789
  6. Step 6: Final answer
    x = 59,984.87

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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.